Figure 5-6 Figure 5-6 Shows the Market for Measles

Multiple Choice

Figure 5-6 Figure 5-6 shows the market for measles vaccinations, a product whose use generates positive externalities.
-Refer to Figure 5-6. What does D1 represent?

A) the demand curve reflecting social benefit
B) the positive externalities curve
C) the demand curve reflecting private benefit
D) the social welfare curve