Choose the correct statement. A. The cost of producing one more unit of a good or service is its marginal cost, which is the minimum price that producers must receive to induce them to offer to sell another unit of the good or service. B. The cost of producing one more unit of a good or service is the producer's marginal cost, and we measure marginal cost as the area above the supply curve and below the market price. C. The price of one more unit of a good or service is its marginal cost. D. The cost of producing one more unit of a good or service is equal to the market price.

A. The cost of producing one more unit of a good or service is its marginal cost, which is the minimum price that producers must receive to induce them to offer to sell another unit of the good or service.

Explanation:

Marginal cost is the cost that incurred to produced additional units of output.

According to the given situation, the actual cost of generating one additional unit by the manufacturer is essentially zero. Suppose a supplier produces 10 units at a total price of 100 and he will have to invest more than 10 to produce the 11th unit which makes the total cost 110. And the manufacturer invested 10 extra directly to create the 11th device.

Therefore from the above explanation the correct answer is A.