試題詳解

4. In an eight-hour day, Andy can produce either 24 loaves of bread or 8 pounds of butter. In an eight-hour day, Bob can produce either 8 loaves of bread or 8 pounds of butter. Andy has a comparative advantage in the production of
(A) bread and neither has a comparative advantage in the production of butter.
(B) butter, while Bob has a comparative advantage in the production of bread.
(C) bread, while Bob has a comparative advantage in the production of butter.
(D) both bread and butter.