Consider the Following AR and MR Curves for a Single-Price

Multiple Choice

Consider the following AR and MR curves for a single-price monopolist.
FIGURE 10-2
-Refer to Figure 10-2.If marginal costs were positive and constant but less than A,the profit-maximizing output for this single-price monopolist would be

A) 0.
B) greater than zero,but less than Q1.
C) greater than zero,but less than Q2.
D) equal to Q2.
E) between Q2 and Q4.