The decline in unit costs of a product or service that occurs as the absolute volume of production increases is known as A. economies of scale.
B. mass customization.
C. specialization.
D. None of the above.

A. economies of scale.

Explanation:

The economies of scale is the scale where the company has the advantage of the cost that reaped by the organization in the case when there is an efficient production. It could be accomplished when the level of production or the volume of the production rises by lowering the cost

Therefore as per the given situation, the option A is correct as it fits to the current situation

Hence, the correct option is A.

answer; no individual buyer or seller has any significant impact on the market price;