FIGURE 8-1 -Refer to Figure 8-1.Which of the Four Firms in the in the Figure

Multiple Choice

FIGURE 8-1
-Refer to Figure 8-1.Which of the four firms in the figure is displaying decreasing returns to scale at all output levels?

A) Firm A
B) Firm B
C) Firm C
D) Firm D
E) all firms are displaying increasing returns to scale