Explanation:

- Option 1: Anticipatory breach of contract

- Refers to a situation where one party indicates they won't perform their obligation before the performance is due.

- Option 2: Quantum of damages

- Correct Answer: Hadley v. Baxendale deals with the measure and scope of damages. It set a precedent for determining foreseeable and recoverable damages in contract breaches.

- Option 3: Supervening impossibility

- Occurs when an unforeseen event interrupts the ability of parties to execute the contract.

- Option 4: Quasi-contract

- Not a traditional contract, but a legal obligation imposed to prevent unjust enrichment.