In the Long Run, Assuming That the Owner of a Firm

Multiple Choice

In the long run, assuming that the owner of a firm in a competitive industry has positive opportunity costs, she

A) should exit the industry unless her economic profits are positive.
B) will earn zero accounting profits but positive economic profits.
C) will earn zero economic profits but positive accounting profits.
D) should ignore opportunity costs because they are a type of sunk cost that disappears in the long run.