Answer:
Option (D) is correct.
Step-by-step explanation:
A country has a comparative advantage in producing a commodity if the opportunity cost of producing that good is lower than the other country in terms of other goods.
A country is exporting a commodity in which it has a comparative advantage because of the lower opportunity cost associated with the production of this commodity. Alternatively, a country is importing a commodity in which has a comparative disadvantage because other country has a lower opportunity cost.