Suppose That a Firm Faces a Demand Curve for Its $P = 10 - Q ^ { d }$

Multiple Choice

Suppose that a firm faces a demand curve for its product of $P = 10 - Q ^ { d }$ . The corresponding marginal revenue curve is $M R = 10 - 2 Q$ . The firm has a constant marginal cost of $4 per unit. If the firm engages in uniform pricing, what price will the firm charge?

A) $7.
B) $5.
C) $4.
D) $3.