Jack and Sharon grow tomatoes and lettuce. Jack has a comparative advantage in producing tomatoes il 0 It. Jack has an absolute advantage in growing both tomatoes and lettuce O B. Sharon's opportunity cost of producing tomatoes is less than her opportunity cost of producing lettuce O C. Sharon's opportunity cost of producing tomatoes is greater than Jack's opportunity cost of producing tomatoes 0 D. Jack can produce enough vegetables for himself and for Sharon If Jack also has an absolute advantage in growing tomatoes and lettuce, he will 0 A. have an equal opportunity cost in performing all activities 0 B. that mean he can perform all activities at the lowest opportunity cost 0 C. that mean that he cannot gain from specialization and trade 0 D. be more productive than Sharon