Answer:
A. economies of scale.
Step-by-step 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.