Use the Figure Below to Answer the Following Questions

Multiple Choice

Use the figure below to answer the following questions.

Figure 16.2.2
-Refer to Figure 16.2.2. This figure shows the demand curve, the marginal private cost curve and the marginal social cost curve of good A. What is the efficient quantity of good A?

A) 0 units
B) 5 units
C) 6 units
D) 8 units
E) impossible to determine without additional information