Refer to the above figure. Which of the following statements is true about the demand curves for an individual firm in a perfectly competitive industry and a monopoly?

A) Panel A is the demand curve for a perfectly competitive firm and panel B is the demand curve for a monopoly.
B) Panel C is the demand curve for a perfectly competitive firm and panel A is the demand curve for a monopoly.
C) Panel C is the demand curve for a perfectly competitive firm and panel B is the demand curve for a monopoly.
D) Panel B is the demand curve for a perfectly competitive firm and panel A is the demand curve for a monopoly.