Cartman and Kenny were discussing the possible sale of Cartman's bike to Kenny. They discussed the matter at length, and Cartman drew up a detailed contract that sold his bike to Kenny for $500.00. Both signed the agreement. As they split up for Kenny to get the money and Cartman to bring the bike, Kenny asked, "Can I also have the tall flag that is on the front handlebars?" Cartman thought about it for a while, and said, "Sure, why not?" When Cartman brought the bike back, the flag had been taken off, and Kenny objected, saying that their contract expressly included the flag in the sale. Cartman said that the contract was what it was, and that here's the bike, and pay him now. Kenny did, but wondered if he could require Cartman to give him the flag. Does Kenny have a legal claim on the flag that was on the bike? A. No. The contract was for the bike, and not the flag. B. No, because the written contract included all the intended parts of the agreement, and the flag wasn't in it. C. Yes, because the flag issue was clarified during the time that the contract negotiations were conducted. D. Yes, because of equitable estoppel.