The Following Question(s) Refer(s) to the Figure Below, Which Depicts

The following question(s) refer(s) to the figure below, which depicts the demand, marginal revenue, and cost curves facing a firm in a competitive price-searcher industry.
Figure 10-13

Refer to Figure 10-13. This firm will maximize profits by producing a quantity of output equal to

A) E and charging a price equal to A .
B) E and charging a price equal to D .
C) F and charging a price equal to H .
D) F and charging a price equal to C .