Is It Possible for a Party That Has Waived Rights

Is it possible for a party that has waived rights to a portion of the contract not yet performed to retract the waiver? Why?

A) Yes.The party will be able to immediately assert the late payments as grounds for later canceling the contract.
B) Yes.The party can give reasonable notice to the other party that strict performance will be required.
C) No.Once a party has waived rights to a portion of the contract,it will not be able to assert this as grounds for later canceling the contract.
D) Yes.The contract is assumed to be made in good faith.