Question 2: Negotiating at Gunpoint Suppose that person A, while aiming a gun at person B, invites B to write a check. Explain the efficiency argument for allowing B to cancel the check later. Presumably, this is a bargain both A and B would like to be enforceable (A would prefer to live and B would prefer the money). So why is it efficient to allow B to cancel the check later?Question 3: The Baseball Star Suppose that a baseball star signs a five-year contract for $1 million per year. In the third year of the contract the player hits more home runs that anyone else in the league. Now he demands to renegotiate his salary. Does efficiency require the law to enforce the original contract? Or would a new contract be valid