Suppose the Figure Below Shows the Demand Curve, Marginal Revenue

Suppose the figure below shows the demand curve, marginal revenue curve and marginal cost curve for a monopolist. When this monopolist maximizes its profit, consumer surplus equals the area:

A) ABJ.
B) ACN.
C) AELJ.
D) ACKJ.
The monopolist will produce F units and charge a price of B) Consumer surplus is the triangular region above price and below the demand curve, to the left of the profit-maximizing level of output.