Barbara, a wealthy widow, promises the pastor of her church that she will donate $20,000 to the church to help pay off its mortgage if the stewardship committee can obtain enough pledges for the balance of the $80,000 mortgage. Other pledges are obtained to pay off the mortgage, but now Barbara has changed her mind and plans to take an around-the-world cruise instead. In this case:. A) the doctrine of promissory estoppel can be applied.
B) the promise to pay $20,000 is a promise to give a gift and is therefore not enforceable.
C) under the Restatement, Barbara's promise is enforceable only if it is in writing.
D) Barbara's promise is not enforceable because the church did not give consideration.