Comparative advantage is the ability to convince others of the best choices to make in their own self-interest. perform an activity at a lower opportunity cost. determine who your best trading partners are. determine the best use of capital goods.

The correct answer is letter "B": perform an activity at a lower opportunity cost.

Explanation:

Comparative advantage is the ability of an individual, company, or country to produce a good or service at a lower opportunity cost than its competitor. Having a comparative advantage does not mean that one entity is absolutely better than another at producing a good or service. It means that it sacrifices less to do so.