A perfectly competitive producer has the following short-run average cost curve and marginal cost curve:
SR AC = 2Q + 3
MC = 4Q + 3
where costs are measured in dollars and Q represents the firm's output in units.
The firm whose short-run cost curves are given and have a long-run fixed cost of:
a. $0.
b. $4.
c. $3.
d. $2