A Monopolist Has the Total Cost Function C(q) = 750

A monopolist has the total cost function c(q) = 750 + 5q. The inverse demand function is 140 - 7q, where prices and costs are measured in dollars. If the firm is required by law to meet demand at a price equal to its marginal costs,

A) the firm will make positive profit but not as much profit as it would make if it were allowed to choose its own price.
B) the firm's profits will be zero.
C) the firm will lose $375.
D) the firm will lose $750.
E) the firm will lose $450.