To achieve gains from trade, a country Question 10 options: A) must produce at a point beyond its PPF. B) needs to have an absolute advantage in the production of all goods. C) specializes in the producing a good in which it has a lower opportunity cost. D) should produce at the midpoint of its PPF. Question 11 (1 point) To calculate the opportunity cost per unit, you divide the decrease in the quantity of the forgone item by the Question 11 options: A) price of the item obtained. B) price of the item forgone. C) increase in the quantity of the other item obtained. D) decrease in the quantity of the other item