Suppose a Monopolist Faces a Demand Curve $Q = a P ^ { - b }$

Multiple Choice

Suppose a monopolist faces a demand curve $Q = a P ^ { - b }$ and that the monopolist has a constant marginal cost of $C$ . The monopolist's profit-maximizing price is:

A) $P = C ( 1 - 1 / b )$
B) $P = C ( 1 / b )$
C) $P = C \left( \frac { 1 } { 1 - 1 / b } \right)$
D) $P = C ( - 1 / b )$