Scenario 9.2 Consider a Publicly Held Firm (One Whose Stock Shares Are

Scenario 9.2
Consider a publicly held firm (one whose stock shares are traded on the stock exchange) that earned revenue worth $350 million and incurred land, labor, and debt costs worth $320 million. The stockholders who have invested a total of $100 million in this firm could have earned 10 percent return on other comparable investments.
-Quickie Inc., a perfectly competitive firm, currently maximizes profit by producing 400 units of output. If its marginal cost is equal to $25 and its average total cost is $20, then how much is it earning in economic profit?

A) Economic profit is always equal to zero in perfect competition.
B) $10,000
C) $8,000
D) $2,000
E) $4,000