In the market for ride sharing services in NYC, each firm and potential entrant has an average cost curve AC(q) = 40 − q + 0.01q², where q is the number of rides per week. Market demand is QD(p) = 25,000 − 1,000p. If the market is perfectly competitive, what will be the market equilibrium price?
a. $10
b. $15
c. $20
d. $25