- Official section
- National V.A.6: Void, voidable, and unenforceable contracts
- Broker weight
- 19% of the national broker portion
- Expected scored items
- Contracts account for about 17 of 100 items
Illinois exam glossary
Unenforceable contract
Contract formation and contract enforcement are separate doors. The parties may pass through the first by making a real agreement, then find the courthouse door closed by a writing rule, expired claim period, licensing law, public policy, or affirmative defense. The exam move is to identify the barrier and its scope, not to call every blocked claim void.
Last updated: August 1, 2026
What does this exam area cover?
Short answer: An unenforceable contract is an agreement for which a court will not grant the requested enforcement because a rule or defense applies. A land contract without a sufficient signed memorandum can trigger the Illinois Frauds Act. A late contract claim can trigger the applicable limitation period. Unlicensed licensed activity can bar compensation. Public policy can defeat a prohibited bargain or clause. Yet each rule has a purpose, scope, procedure, exceptions, waiver rules, and remedy consequences. Unenforceable does not automatically mean void, voidable, unsigned, or nonexistent.
This guide follows the PSI Illinois Candidate Information Booklet effective June 24, 2026, Illinois authority on affirmative defenses, the Frauds Act, public policy, licensing, and alternative remedies, plus 740 ILCS 80/2, 225 ILCS 454/10-15, 735 ILCS 5/13-205, and 735 ILCS 5/13-206, all checked through August 1, 2026. Limitations and repose periods vary by claim, writing, party, accrual, discovery, amendment, tolling, disability, fraud, payment, new promise, and specialized statute. Students should learn the distinction, not use these summaries to calculate a live filing deadline.
What is on the official outline?
- Topic
- Confirm agreement formation
- What to know
- offer, acceptance, mutual assent, consideration, lawful purpose, capacity, authority, definite terms, writing, signature, and delivery
- Best exam move
- Ask whether a contract arose before asking whether a court will enforce it.
- Topic
- Identify the requested remedy
- What to know
- damages, specific performance, injunction, rescission, restitution, commission, rent, earnest money, declaration, foreclosure, and attorney fees
- Best exam move
- A defense may block one remedy, one term, or one claimant without erasing every legal consequence.
- Topic
- Name the enforcement barrier
- What to know
- Frauds Act, limitations, repose, public policy, illegality, licensing, unconscionability, waiver, estoppel, release, accord, and satisfaction
- Best exam move
- Match the facts to a specific defense instead of using unenforceable as a vague conclusion.
- Topic
- Read the governing language
- What to know
- void, voidable, unenforceable, no action, no recovery, prohibited, invalid clause, penalty, remedy, defense, exception, and protected party
- Best exam move
- The legislature or controlling court may specify the effect more precisely than a general textbook label.
- Topic
- Apply the land Frauds Act
- What to know
- sale of land, interest in land, longer lease, memorandum, writing, party charged, authorized signer, essential terms, signature, and action
- Best exam move
- Look for a signed writing that identifies parties, property, price or method, and the material bargain with sufficient certainty.
- Topic
- Combine related writings
- What to know
- offer, acceptance, email, text, addendum, exhibit, incorporated document, signature, connection, authentication, and complete terms
- Best exam move
- Multiple writings may be read together only when the legal requirements connecting them are satisfied.
- Topic
- Test signer authority
- What to know
- party charged, agent, written authorization, power of attorney, trustee, entity, officer, member, partner, representative, and electronic signature
- Best exam move
- A writing signed by the wrong person does not necessarily satisfy the rule against the party being charged.
- Topic
- Test Frauds Act exceptions
- What to know
- part performance, equitable estoppel, admission, fraud, possession, payment, improvements, reliance, specific performance, and proof
- Best exam move
- Do not assume payment alone or casual reliance is enough; courts apply exact equitable requirements.
- Topic
- Use the shield concept
- What to know
- affirmative defense, pleading, waiver, shield, sword, fraud prevention, perjury prevention, claim, counterclaim, and burden
- Best exam move
- The Frauds Act protects against unsupported enforcement rather than creating a brokerage tactic for opportunistic harm.
- Topic
- Identify claim accrual
- What to know
- breach date, performance due, repudiation, demand, discovery, injury, closing, installment, continuing duty, and cause of action
- Best exam move
- A limitation period cannot be calculated until the legally correct accrual event is identified.
- Topic
- Classify the writing
- What to know
- written contract, written lease, note, bond, guaranty, oral contract, implied contract, mixed evidence, amendment, renewal, and complete obligation
- Best exam move
- Illinois sections 13-206 and 13-205 use different general periods, but classification depends on the claim and documents.
- Topic
- Check specialized time rules
- What to know
- construction, professional service, fraud, consumer statute, foreclosure, probate, government, title, securities, federal claim, contractual limit, and repose
- Best exam move
- Never assume the general written-contract period governs every real-estate-related claim.
- Topic
- Check tolling and revival
- What to know
- minority, legal disability, fraudulent concealment, absence, payment, written promise, waiver, estoppel, relation back, discovery, and statutory amendment
- Best exam move
- A calendar answer requires current law and complete facts beyond the original contract date.
- Topic
- Apply licensing restrictions
- What to know
- licensed activity, unlicensed actor, commission, referral, transaction party, consumer, rebate, sponsoring broker, out-of-state license, and court recovery
- Best exam move
- Use 225 ILCS 454/10-15 before promising or paying compensation tied to licensed services.
- Topic
- Apply protective licensing policy
- What to know
- public protection, unregulated provider, express purpose, statutory remedy, seriousness, enforcement interest, public safety, and unjust enrichment
- Best exam move
- A licensing defect can defeat enforcement when allowing the bargain would undermine the public-protection scheme.
- Topic
- Apply public policy sparingly
- What to know
- constitution, statute, judicial decision, manifest injury, freedom of contract, legitimate purpose, balancing, illegal term, and lawful construction
- Best exam move
- A court needs an established policy, not mere dislike of a deal's economics.
- Topic
- Test clause-level enforcement
- What to know
- waiver, exculpation, liquidated damages, penalty, arbitration, attorney fees, confession, indemnity, discrimination, severability, and essential term
- Best exam move
- An unenforceable clause can sometimes be removed while the rest of the contract remains operative.
- Topic
- Test equitable alternatives
- What to know
- quantum meruit, unjust enrichment, restitution, benefit conferred, acceptance, reasonable value, clean hands, in pari delicto, statutory purpose, and express contract
- Best exam move
- An alternative claim cannot be used automatically to enforce the same prohibited bargain under a new label.
- Topic
- Protect evidence and deadlines
- What to know
- originals, electronic records, signatures, version history, receipts, performance, demand, denial, breach, counsel hold, and filing date
- Best exam move
- Preserve the proof and refer immediately because waiting can change enforcement rights.
- Topic
- Protect brokerage boundaries
- What to know
- approved form, written agreement, signature, license verification, no limitations opinion, no waiver promise, managing broker, attorney, escrowee, and title company
- Best exam move
- Brokers create clean records and timely referrals, but lawyers determine defenses, exceptions, deadlines, and court remedies.
Which distinctions produce the most mistakes?
- Terms
- Unenforceable vs. void
- Difference
- Unenforceable means a court remedy is blocked despite an underlying agreement. Void means no binding legal effect from inception.
- Question cue
- Remedy blocked versus no legal life.
- Terms
- Unenforceable vs. voidable
- Difference
- Unenforceability arises from a defense or rule against enforcement. Voidability gives a protected party the election to avoid or ratify.
- Question cue
- Court barrier versus protected choice.
- Terms
- No contract vs. unenforceable contract
- Difference
- No contract means formation failed. An unenforceable contract can contain offer, acceptance, consideration, and assent but face a later enforcement defense.
- Question cue
- Never formed versus formed but blocked.
- Terms
- Frauds Act vs. parol evidence rule
- Difference
- The Frauds Act requires a signed writing for covered bargains. The parol evidence rule limits use of prior or contemporaneous outside terms to vary an integrated writing.
- Question cue
- Required written proof versus content of final writing.
- Terms
- Statute of limitations vs. statute of repose
- Difference
- A limitation period ordinarily runs from claim accrual, sometimes with discovery or tolling. Repose sets an outer boundary from a defined event regardless of later accrual, subject to its text.
- Question cue
- Time after claim versus outside cutoff.
- Terms
- Accrual vs. contract date
- Difference
- Accrual is when the cause of action legally arises. The signing date may precede breach and is not automatically the limitations start.
- Question cue
- Claim born versus deal signed.
- Terms
- Written vs. unwritten limitation
- Difference
- Illinois generally gives actions on written contracts and leases 10 years and unwritten contract actions five years, but exact claim classification and special laws control.
- Question cue
- 735 ILCS 5/13-206 versus 13-205.
- Terms
- Affirmative defense vs. failure of proof
- Difference
- An affirmative defense assumes the claim's allegations but adds a fact or rule defeating recovery. Failure of proof means the claimant did not establish a required element.
- Question cue
- New defeating matter versus missing element.
- Terms
- Unenforceable clause vs. entire contract
- Difference
- A particular provision may fail while a severable lawful bargain survives. The whole contract fails when the invalidity reaches its essential exchange or policy demands it.
- Question cue
- Bad term versus bad bargain.
- Terms
- Contract damages vs. restitution
- Difference
- Contract damages enforce the bargain's promised position. Restitution measures benefits unjustly retained and can depend on separate equitable rules.
- Question cue
- Expectation versus unjust gain.
- Terms
- Waiver vs. estoppel
- Difference
- Waiver is intentional relinquishment of a known right. Estoppel prevents inconsistent reliance on a position when another reasonably changed position to detriment.
- Question cue
- Right surrendered versus contradiction barred.
- Terms
- Limitation defense vs. contract expiration
- Difference
- A limitations defense concerns the deadline to sue after a claim accrues. Contract expiration concerns when the agreement or performance period ends.
- Question cue
- Court filing deadline versus deal term.
The B-A-R-R-E-D check
- Bargain: confirm offer, acceptance, assent, consideration, capacity, authority, purpose, terms, performance, and the remedy requested.
- Applicable barrier: identify the Frauds Act, limitations, repose, licensing, public policy, illegality, release, waiver, estoppel, or clause-level defense.
- Rule text: read who is protected, what conduct or claim is covered, whether it says void or unenforceable, and every exception or remedy.
- Record and timing: locate writings, signatures, authority, performance, accrual, discovery, payment, new promise, disability, notice, pleading, and filing events.
- Extent: decide whether the barrier defeats one claimant, remedy, promise, clause, transaction, or the entire agreement, and test severability.
- Different relief: analyze rescission, restitution, quantum meruit, statutory remedy, escrow, title, or equitable relief without using them to evade policy.
- Barrier
- Frauds Act
- Question
- Is there sufficient signed writing?
- Common trap
- Calling oral bargain automatically void
- Barrier
- Limitations
- Question
- When did this claim accrue?
- Common trap
- Counting only from signature date
- Barrier
- Licensing
- Question
- Was regulated activity lawfully performed?
- Common trap
- Paying unlicensed commission
- Barrier
- Public policy
- Question
- What established policy is harmed?
- Common trap
- Using personal unfairness
- Barrier
- Invalid clause
- Question
- Can lawful bargain stand without it?
- Common trap
- Voiding entire agreement
- Barrier
- Alternative remedy
- Question
- Would relief evade the statute?
- Common trap
- Assuming quantum meruit always works
How do the rules work in scenarios?
Oral land-sale bargain
Scenario: Buyer and seller orally settle on a parcel, price, and closing date, but no signed memorandum exists. Seller raises 740 ILCS 80/2 when buyer sues for the land.
- The subject is a contract for the sale of land.
- The required signed memorandum is missing on the stated facts.
- The Frauds Act supplies a defense to the enforcement action, subject to any proven exception.
Answer: The oral bargain is generally unenforceable under the Frauds Act, not automatically void for every purpose.
Signed email chain
Scenario: Several authenticated emails identify buyer, seller, the exact parcel, price, and closing terms. Seller's typed signature appears on the acceptance, and the messages clearly incorporate the prior offer.
- Electronic writings and signatures can satisfy writing law when statutory requirements are met.
- The connected writings contain the essential bargain.
- The party charged signed the acceptance.
Answer: The writings may satisfy the Frauds Act; format alone does not make them insufficient.
Late written-contract claim
Scenario: A claimant sues on an Illinois written lease more than 10 years after the claim accrued, and no different statute, tolling, payment, or written new promise applies.
- The claim is on a written lease.
- Section 13-206 supplies the general 10-year period.
- The defense concerns the action's timeliness, not whether the lease historically existed.
Answer: The contract action is time-barred on the stated facts.
Signing date is not accrual date
Scenario: A ten-year service contract is signed in 2020, performance is due in 2028, and the first breach occurs in 2028. A party starts counting a limitations period only from 2020.
- The contract date and breach date are different.
- Accrual ordinarily requires the cause of action to arise.
- The correct period and start still depend on the claim and law.
Answer: Do not automatically run the limitations clock from the signing date.
Unlicensed commission claimant
Scenario: An unlicensed neighbor negotiates price and material sale terms for an owner, then sues for a promised percentage commission.
- Negotiation for another for compensation is licensed real estate activity.
- The claimant was unlicensed when performing it.
- 225 ILCS 454/10-15 bars the compensation and recovery action.
Answer: The commission promise cannot be judicially enforced by the unlicensed actor.
One prohibited lease clause
Scenario: A lease contains an unlawful nonessential fee clause, but rent, premises, term, possession, and all lawful obligations operate independently, and the policy does not require voiding the lease.
- The invalid provision is not the essential exchange.
- Removing it does not create a new economic bargain.
- The remaining terms can be enforced if governing law permits severance.
Answer: The clause may be unenforceable while the rest of the lease survives.
Alternative recovery is not automatic
Scenario: A contractor cannot enforce a price term because a protective statute denies that contract recovery, then demands the same price as quantum meruit without proving the statute permits equitable relief.
- Quantum meruit is a separate restitution theory, not a label-changing device.
- The statute's protective purpose and remedies control whether alternative relief survives.
- The claimant must prove benefit, acceptance, reasonable value, and equitable entitlement.
Answer: The failed contract claim does not automatically produce restitution.
What are the common exam traps?
- Trap
- Calling unenforceable void
- Correction
- Separate contract existence from whether a court will grant a remedy.
- Trap
- Skipping formation
- Correction
- First determine whether offer, acceptance, assent, consideration, and definite terms created an agreement.
- Trap
- Treating every oral contract alike
- Correction
- Identify the covered transaction and the specific writing statute.
- Trap
- Ignoring connected writings
- Correction
- A sufficient memorandum can sometimes consist of properly connected signed documents.
- Trap
- Ignoring signer authority
- Correction
- The land Frauds Act addresses a signature by the party charged or one lawfully authorized in writing.
- Trap
- Assuming payment alone defeats the Frauds Act
- Correction
- Equitable exceptions have exact elements and demand stronger facts than a generic payment claim.
- Trap
- Using the Frauds Act as a transaction weapon
- Correction
- It is a defense against unreliable enforcement, not a broker's cancellation device.
- Trap
- Counting limitations from contract date
- Correction
- Find accrual, the applicable statute, tolling, repose, and specialized rules.
- Trap
- Using 10 years for every written document
- Correction
- The claim must be on a written obligation, and another statute may govern.
- Trap
- Ignoring a five-year unwritten-contract period
- Correction
- Section 13-205 generally applies to unwritten express or implied contract actions, subject to exceptions.
- Trap
- Missing a repose cutoff
- Correction
- Some real-estate-related claims have an outer repose period independent of ordinary discovery.
- Trap
- Paying unlicensed commission
- Correction
- Verify licensing and apply 225 ILCS 454/10-15 before promising or releasing compensation.
- Trap
- Voiding all terms for one bad clause
- Correction
- Test severability, essential exchange, misconduct, and the governing policy.
- Trap
- Assuming restitution always survives
- Correction
- Alternative relief cannot defeat a statute's protective purpose or bypass an express enforceable contract.
- Trap
- Letting a broker calculate litigation deadlines
- Correction
- Preserve documents and refer immediately to counsel for claim, accrual, tolling, and filing analysis.
Can you answer these original practice questions?
These questions are original study items aligned to the published outline. They are not copied, recalled, or predicted PSI questions.
1. What can make an otherwise formed contract unenforceable?
- An applicable affirmative defense or legal bar
- A recorded deed only
- A listing photo
- A home warranty
Show answer and explanation
Answer: An applicable affirmative defense or legal bar
Formation and judicial enforcement are separate questions.
2. Is an unenforceable contract always void from inception?
- No
- Yes
- Only for leases
- Only for sales
Show answer and explanation
Answer: No
The agreement may exist even though a court remedy is barred.
3. What does 740 ILCS 80/2 generally require for a land-sale enforcement action?
- A sufficient writing signed by the party charged or authorized signer
- An oral handshake only
- A property-tax bill
- A broker's sign
Show answer and explanation
Answer: A sufficient writing signed by the party charged or authorized signer
The writing must identify the essential bargain with sufficient certainty.
4. What is the general Illinois period for actions on written contracts?
- 10 years
- One year
- 30 days
- No limit
Show answer and explanation
Answer: 10 years
Section 13-206 states 10 years, subject to accrual, exceptions, and specialized statutes.
5. What is the general Illinois period for unwritten contract actions?
- Five years
- 20 years
- 90 days
- No limit
Show answer and explanation
Answer: Five years
Section 13-205 states five years, subject to other governing law.
6. Does the limitation clock always start when the contract is signed?
- No
- Yes
- Only for deeds
- Only for leases
Show answer and explanation
Answer: No
The legally correct claim accrual event must be identified.
7. Can an unlicensed person sue for a commission earned through licensed activity?
- No
- Yes
- Only after closing
- Only if paid in cash
Show answer and explanation
Answer: No
225 ILCS 454/10-15 bars recovery for activity performed in violation of the Act.
8. Does every statutory violation automatically bar contract enforcement?
- No
- Yes
- Only in Cook County
- Only for mortgages
Show answer and explanation
Answer: No
Express language, protective purpose, remedies, seriousness, and public policy matter.
9. Can one clause be unenforceable while the rest survives?
- Yes, when lawful terms are severable and policy permits
- Never
- Always
- Only if oral
Show answer and explanation
Answer: Yes, when lawful terms are severable and policy permits
The invalid term must not be essential to the exchange or required to defeat the policy.
10. Who should calculate a live contract claim deadline?
- Qualified legal counsel
- The broker acting alone
- The home inspector
- The photographer
Show answer and explanation
Answer: Qualified legal counsel
Claim characterization, accrual, tolling, repose, and exceptions are legal issues.
How should you study this area?
- Session
- Session 1
- Focus
- Separate formation and enforcement
- Proof you are ready
- Classify 40 no-contract, valid, void, voidable, unenforceable, time-barred, severable, and fully performed scenarios.
- Session
- Session 2
- Focus
- Master the land Frauds Act
- Proof you are ready
- Audit 35 land-interest, memorandum, essential-term, signature, authority, connected-writing, electronic-record, shield, and exception facts.
- Session
- Session 3
- Focus
- Master limitation structure
- Proof you are ready
- Solve 35 contract-date, accrual, breach, discovery, written, unwritten, special-statute, tolling, payment, disability, and repose questions.
- Session
- Session 4
- Focus
- Apply licensing and policy
- Proof you are ready
- Review 30 licensed-activity, unlicensed compensation, consumer, transaction party, regulatory purpose, statutory remedy, and public-policy files.
- Session
- Session 5
- Focus
- Map scope and alternative relief
- Proof you are ready
- Classify 35 whole-contract, invalid-clause, severability, waiver, estoppel, release, restitution, quantum-meruit, benefit, and policy issues.
- Session
- Session 6
- Focus
- Run B-A-R-R-E-D
- Proof you are ready
- Audit two Illinois disputes, score at least 90 percent, and state the agreement, remedy, barrier, exception, and scope aloud.
Do not count recognition as mastery. Close the notes and explain the rule, apply it to a new fact pattern, and identify why each distractor fails.
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Questions students ask about Unenforceable Contract: Illinois Real Estate Exam Guide
What is an unenforceable contract?
An unenforceable contract can contain the elements of an agreement, yet a law or affirmative defense prevents a party from obtaining the requested contract remedy in court. The barrier may involve the Frauds Act, an expired limitations period, public policy, a licensing restriction, or another defense. That is different from saying no contract ever formed.
Is an unenforceable contract the same as a void contract?
No. A void contract has no binding legal effect from inception. An unenforceable contract may have formed, and the parties may even have performed parts of it, but the claimant cannot obtain judicial enforcement because a rule or defense applies. Some opinions use labels differently in a specific statutory context, so the governing law always controls.
How does the Illinois Frauds Act affect real estate contracts?
Section 2 of the Frauds Act generally provides that an action may not be brought on a contract for the sale of land or an interest in land unless a written memorandum is signed by the party charged or another person lawfully authorized in writing. The writing must identify the essential bargain with sufficient certainty. Separate equitable doctrines can require fact-specific analysis.
Is the Statute of Frauds a sword or a shield?
Illinois decisions describe it as a shield against fraud and perjury, not a sword for wounding justice. It is ordinarily raised as a defense to enforcement. That does not let a broker ignore the rule or promise that an oral land deal will be enforced. Courts, not transaction participants, decide waiver, estoppel, admissions, part performance, and equitable relief.
What is a statute of limitations?
It sets the time within which an action must be commenced after the claim accrues. Illinois section 13-206 generally states a 10-year period for actions on written contracts and written leases, while section 13-205 generally states five years for unwritten contracts, subject to exceptions, specialized statutes, accrual rules, tolling, revival provisions, and claim characterization.
Does an expired limitations period erase the contract?
Usually the exam point is that the court remedy is barred, not that the historical agreement never existed. Limitations is an affirmative defense and may be waived if not properly asserted, subject to the governing procedural law. Never calculate a live deadline from a glossary summary because accrual, discovery, tolling, disability, repose, amendment, and a different statute can change it.
Can an unlicensed person enforce a real estate commission promise in Illinois?
Not for licensed activity performed in violation of the Real Estate License Act. Section 10-15 prohibits that compensation and states that the unlicensed person cannot maintain an action for it. The Act contains carefully defined provisions for consumers, parties to transactions, and lawful incentives, so no exception should be assumed from a generic referral label.
Does every statutory violation make a contract unenforceable?
No. The Illinois Supreme Court has explained that a statutory violation is not automatically fatal. Courts examine express statutory language, the law's protective purpose, remedies, seriousness, the interest in enforcement, and public policy. Where a licensing law protects the public and enforcement would defeat that purpose, a court may deny enforcement.
Can part of a contract be unenforceable while the rest survives?
Yes. A prohibited fee, remedy, waiver, arbitration term, exculpatory provision, or other clause may be severable if the lawful exchange can operate without it and the governing policy permits. A severability clause helps show intent but cannot save a core bargain that the law forbids or authorize a court to invent materially different terms.
Can restitution remain available when a contract claim fails?
Sometimes. Quantum meruit or unjust enrichment is not enforcement of the failed express contract, and availability depends on the statute, the parties' conduct, an existing enforceable contract covering the subject, public policy, benefit conferred, and equitable defenses. It cannot be used automatically to evade a law that deliberately denies recovery.
Are these official PSI questions or legal advice?
No. The practice questions are original. The PSI Illinois outline, Illinois statutes, and Illinois court materials were checked through August 1, 2026. This is exam education, not legal, litigation, limitations, licensing, escrow, or title advice. A live dispute requires the signed documents, authority, performance, claim accrual, correspondence, payments, statutory text, amendments, defenses, exceptions, and immediate counsel review.
Primary sources
- PSI Illinois Candidate Information Booklet effective June 24, 2026
- Illinois Courts, official decision explaining that an otherwise formed contract can become unenforceable through an affirmative defense
- Illinois Courts, official real estate decision explaining the Frauds Act as a defense and a shield against fraud and perjury
- Illinois Supreme Court, official opinion explaining why a statutory violation does not automatically bar contract enforcement
- Illinois Courts, official mortgage decision addressing protective licensing law, public policy, and unenforceability
- Illinois General Assembly, 740 ILCS 80/2 land-contract writing and enforcement rule
- Illinois General Assembly, 735 ILCS 5/13-206 general 10-year period for written contract and lease actions
- Illinois General Assembly, 735 ILCS 5/13-205 general five-year period for unwritten contract actions
- Illinois General Assembly, 225 ILCS 454/10-15 unlicensed activity compensation and recovery restrictions
The current official outline controls the tested scope. Statutes, regulations, and official agency materials control when a general study rule and a jurisdiction-specific rule differ.
Editorial status
Checked against primary sources
The Pass Illinois editorial team last checked this guide on August 1, 2026. Every practice question is an original study item, and the source links above let you verify the rules that support the lesson.