help please

Joey makes a contract to buy a truck when he is 15 years old. He has the legal right to avoid this contact: A. up until the car dealership realizes he was a minor when the contact was made. B. up until he turns 18 and for a reasonable amount of time thereafter. C. until he turns 21 . D. until the new car smell is gone. Lenny who is 16 , lives with his father who is an astronaut. Lenny suffers from a serious illness requring daily treatements 30 miles from his home. If Lenny makes a contract for the purchase of a car so that he can drive to his treatments while his dad is in space on a mission but later attempts to disaffirm the contract what is the best agrument the car dealership could make to a court for why the contract should be enforced despite Lenny's age? That in this case the car was a "necessary" and Lenny should have to pay the reasonable value of the car. That Lenny lied about his age when the contract was made. That the car was damaged when Lenny attempted to return it. That Lenny needs to be taught a lesson. All persons who have not been found mentally incompetent by a court are generally: A. presumed to have contractual capacity. B. presumed to lack contractual capacity. C. presumed to have the option to disaffirm their contracts. D. presumed to be over the age of 18 . Juan offers to buy Bobby's truck for $5,000 but does not specifically state a time and date that the offer will expire. The offer will likely terminate after a amount of time passes without Bobby accepting it