9.Ace was thinking about selling his 2004 Buick to Wilbur for $400.Ace told his friend Bart Simpson, age 22.Without Ace's knowledge or consent, Bart immediately went to Wilbur and told Wilbur that Ace was planning to offer his car to Wilbur.Wilbur then telephoned Ace and said "I accept."What result?

a.Wilbur and Ace have a contract because Wilbur accepted Ace's offer.

b.Wilbur and Ace have a contract under the doctrine of promissory estoppel.

c.Wilbur and Ace do not have a contract, because Ace did not make an offer to Wilbur.

d.Wilbur and Ace do not have a contract, but Bart and Wilbur do.

e.None of these