A(n) ________ occurs whenever a party fails to perform her obligations under the contract.

A) breech
B) quasi-contract
C) breach
D) illusory contract
E) mistake

Quasi-Contract

A legal concept where a court enforces a non-existent contract to prevent unjust enrichment or unfairness.

Breach

A violation or infraction of a law, duty, or agreement.

Illusory Contract

An agreement that lacks a real obligation from one or more parties, making it unenforceable.