The Table Below Summarizes the Information Possessed by a Firm

The table below summarizes the information possessed by a firm in a monopolistically competitive market. Quantity demanded is in thousands of units.

-Refer to the table above.This market is ________.

A) in the long-run equilibrium, because the firm earns a maximum profit of zero
B) in the long-run equilibrium, because the marginal revenue equals the marginal cost at the optimal quantity for the firm
C) not in the long-run equilibrium, because the firm earns a maximum profit that is negative
D) not in the long-run equilibrium, because the marginal revenue and the marginal cost are not equal