In a Long-Run Equilibrium in a Monopolistically Competitive Market,do Firms

Multiple Choice

In a long-run equilibrium in a monopolistically competitive market,do firms produce at the level of output that minimizes average total cost over all levels of output?

A) Yes, since firms produce at Price = Average total cost
B) Yes, because average total cost exceeds marginal cost
C) No, because firms are not producing at the minimum of average total cost
D) Yes, because firms are producing at the point where Marginal revenue = Marginal cost