If a Contract Contains a Condition Subsequent It Means That

If a contract contains a condition subsequent it means that:

A) performance must be completely done according to contract specifications or the contract is breached.
B) performance will be excused upon the happening of some specified future event.
C) impossibility of performance will not be an acceptable excuse for nonperformance.
D) performance will not be excused due to an unexpected event in the future.
E) performance will be due upon the happening of some specified future event.