Sharon has contracted with Craig to buy Craig's car. She has agreed to pay $5,000 in cash in exchange for the title and registration for the vehicle. Sharon and Craig agree to meet at 10 a. m. on Wednesday to exchange their consideration. Unfortunately, Craig dies Tuesday evening. a) the contract automatically terminates due to impossibility caused by craig's death. b) the contract automatically terminates due to impracticability caused by craig's death. c) the contract is still valid and craig's heirs must go through with it based on the agreed terms. d) the contract is still enforceable; however, craig's heirs may renegotiate the terms because they are now the owners of the car.