Alan Tells Sherry That He Will Pay Her $5,000 If

Multiple Choice

Alan tells Sherry that he will pay her $5,000 if she runs the Boston Marathon.Once Sherry starts running the marathon,Alan ________.

A) can revoke the contract,as an informal verbal agreement is not legally binding
B) can revoke the contract,provided he does so before she completes the marathon
C) can reduce the amount of money he offered her,provided he does so before she completes the marathon
D) cannot revoke the contract