Aproducer 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.

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.

the correct answer is A

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south, because if you took a map you would see texas is directly in the middle of east and west, but it is also downwards towards mexico, therefore it is south