Which of the Following Is a Condition for Industry Expansion

Multiple Choice

Which of the following is a condition for industry expansion through expansion of existing firms instead of entry of new firms?

A) Firms take advantage of diseconomies of scale.
B) A firm size is greater than the minimum efficient sale.
C) A firm's average total cost decreases as a result of technological change.
D) A firm produces beyond the minimum long-run average total cost.
E) Firms make normal profits.