Answer:
Option (A) is correct.
Explanation:
According to the law of comparative advantage, a country or a nation has a comparative advantage in the production of a particular commodity if the opportunity cost of producing that commodity is lower than the other nation in terms of other commodity.
Comparative advantage is because of the difference in the factor endowments among the nations.
A country is exporting a commodity whose production requires the intensive use of the relatively abundant factor and in which it has a comparative advantage.