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

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

answer; i believe the correct answer is customer,manufacturer, service provider,general public ; quality is primarily the responsibility of all all employees in the organization.