Jack Hires Frankie,who Is 13 Years Old,to Buy a Computer

Jack hires Frankie,who is 13 years old,to buy a computer on Jack's behalf.Which of the following is true?

A) This is a valid agency relationship even though Frankie is a minor,and Jack would be bound by authorized contracts entered into on Jack's behalf.
B) This is a valid agency relationship even though Frankie is a minor,but Jack would be able to disaffirm any contracts entered into on Jack's behalf.
C) This agency arrangement is not valid because the agent lacks contractual capacity.
D) If Frankie buys the computer on Jack's behalf,Frankie would not be entitled to payment under the terms of the agency arrangement because of his lack of capacity.