Which of the Following Is True with Regard to Ending

Multiple Choice

Which of the following is true with regard to ending a contract by performance,agreement,or breach?

A) If a person properly tenders performance of a service that is rejected by the other party,he is required to try again and again.
B) If one party to the contract has paid for a service,but now the other party doesn't want to perform,the contract is ended by agreement as long as both parties agree to call it off.
C) A person has legally tendered performance if he pays a $500 debt in 25-cent coins.
D) A contract can be ended by breach if there was either a breach of condition or a breach of warranty.
E) A contract ends by agreement when the parties include in the contract a "condition subsequent" (i.e.,a clause that says the contract will end upon the happening of a specified future event that then takes place) .