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 D₁ represent?

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