A producer with a comparative advantage has the ability to produce a good or service at

A. a lower opportunity cost than any competitor can.

B. a faster rate than any competitor can.

C. a greater volume than any competitor can.

D. a lower cost than any competitor can.

the correct answer is A ...

A producer with a comparative advantage has the ability to produce a good or service at "a lower opportunity cost than any competitor can". (A)

Comparative Advantage is the capacity of an individual or gathering to complete a specific monetary action, for example, making a particular item, more proficiently than another activity. The law or guideline of comparative advantage holds that under free commerce, an operator will deliver a greater amount of and consume a lesser degree of a good for which they have a comparative advantage.