Roger Gets Bucked Off of His $20,000 Horse

Multiple Choice

Roger gets bucked off of his $20,000 horse. As he picks himself up off the ground, he yells, "I'll sell this worthless horse for $100!" Carrie hands Roger $100 and tries to take the horse. Roger will not sell her the horse for $100, so Carrie wants to sue him for breach of contract. An attorney would likely advise Carrie that

A) she will easily win the case.
B) no contract was formed because Roger's offer was not serious.
C) no contract was formed because the horse is worth $20,000.
D) a contract was formed, but Carrie will have to pay the horse's true value if she wants to buy it.