Which of the Following Involves the Discharge of a Contract

Multiple Choice

Which of the following involves the discharge of a contract by operation of law?

A) One of the parties becomes bankrupt.
B) Each party discharges the obligation of the other to perform the contract.
C) One of the parties fails to carry out their obligation completely, and the other party accepts this.
D) Performance of the contract becomes impossible due to the occurrence of an unforeseen event.