The night before his commencement ceremony, Leland’s uncle promises to buy him a new car after he actually sees Leland receive his diploma. Leland gladly accepts. After the ceremony, Leland’s uncle says, “Just kidding, no car!” Leland cannot prevail in a breach of contract claim because the agreement lacks:

a. Offer.

b. Acceptance.

c. Consideration.

d. Legality.

e. Mutual assent.