Economies of Scale Exist as a Firm Increases Its Size

Multiple Choice

Economies of scale exist as a firm increases its size in the long run because of all of the following except

A) the firm can afford more sophisticated technology in production.
B) labour and management can specialise even further in their tasks.
C) as a larger input buyer, the firm can purchase inputs at a lower per unit cost.
D) as a firm expands its production, its profit margin per unit of output increases.