If, at the output where marginal cost equals marginal revenue, both a pure competitor's and a monopolist's marginal revenue is $5.00:
A) both sellers' profit-maximizing price will be $5.00.
B)) both sellers' profit-maximizing price will be greater than $5.00.
C) the pure competitor's profit-maximizing price will be $5.00, and the monopolist's profit-maximizing price will be greater than $5.00.
D) the monopolist's profit-maximizing price will be $5.00, and the pure competitor's profit-maximizing price will be greater than $5.00.
E) it is impossible to compare the output choice of the perfect competitor with that of the monopolist.