Answer:
The correct answer is option b.
Step-by-step explanation:
Economies of scale refer to the reduction in the average cost of production as the quantity of output produced increases. In the production process, there is some fixed and variable cost involved.
The average cost of production is the ratio of the total cost incurred in the process of production and the level of output. It is the cost of producing each unit of output.
The producers can reduce their cost of production through the division of labor and specialization.