Which of the Following Is True of Discharge of Contracts

Which of the following is true of discharge of contracts due to impossibility of performance?

A) Contracts can be discharged by strict impracticability of performance.
B) If an act is legal at the time of entering a contract but is subsequently made illegal, the contract is still enforced.
C) If the act called for in an alleged contract is impossible to perform at the time the contract is made, no contract ever comes into existence.
D) When performance by a party is made impossible by the wrongful act of the other party, the party who cannot perform has breached the contract by the failure to perform.