Figure 5-6 Figure 5-6 Shows the Market for Measles Vaccinations, a Product

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 D₂ represent?

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