A Monopoly Is Distinguished from a Firm Operating Under Any

A monopoly is distinguished from a firm operating under any other market structure in the following way: the monopoly

A) charges a price higher than its average revenue.
B) can choose its output level.
C) can choose its level of cost.
D) does not produce at a profit-maximizing level of output.
E) faces a demand curve which is identical to the market demand curve.