Where a promisor has made an offer of performance to the promise and the offer has not been accepted:

A. The promisor is responsible for non-performance, but he does not lose his rights under the contract

B. The promisor is not responsible for non-performance, nor does he thereby lose his rights under the contract

C. The promisor is not responsible for non-performance, but he loses his rights under the contract

D. The promisor can enforce the performance of the promise

Answer: Option B