A firm has the following total and marginal cost functions, where Q is output per week:
STC = 500 + 20Q + .05Q2
SMC = 20 + .1Q
What will be its profit-maximizing output, assuming it faces a fixed market price of $40 for its product? How much will the maximum profit be?
A) $1,000
B) $1,200
C) $1,500
D) $1,800