Discharge of a Contract Occurs When

Discharge of a contract occurs when:

A) the parties have no further obligations to each other
B) the parties to the contract mutually agree to the obligations being brought to an end, even if the promises made under the contract had not been completed
C) all the parties have done exactly what they were required to do under the terms of the agreement
D) the promises the parties have made have come to an end
E) All of the above