Answer:
The correct answer is option a.
Step-by-step explanation:
The law of comparative advantage states that a country should produce and export that product in which it experiences comparatively lower opportunity costs. The countries will be said to be specializing in the production of goods and services that they can produce at a relatively lower opportunity cost.
If two countries produce and exchange the goods they specialize in, they will be able to jointly produce more and consume more than they could individually.