The Following Figure Depicts a Generalized Downward-Sloping Market Demand (D)curve

The following figure depicts a generalized downward-sloping market demand (D) curve for a product.It also shows the firm's relevant marginal revenue (MR) curve and marginal cost (MC) curve.Refer to this figure to answer the following questions:

-For a monopoly that charges a single price of P₁,which of the following areas would be designated as consumer surplus?

A) A
B) B
C) C
D) A + B
E) There is no consumer surplus.