Which of the Following Statements Regarding Monopolistic Competition Is False

Which of the following statements regarding monopolistic competition is false?

A) In the long-run equilibrium, price equals average total cost.
B) In the long-run equilibrium, firms earn zero economic profit.
C) In the long-run equilibrium, firms charge a price above marginal cost.
D) In the long-run equilibrium, firms produce a quantity in excess of their efficient scale.