A Positive Externality Causes

Multiple Choice

A positive externality causes

A) the marginal social benefit to be equal to the marginal private cost at the market equilibrium.
B) the marginal social benefit to be less than the marginal private cost at the market equilibrium.
C) the marginal social benefit to exceed the marginal private cost at the market equilibrium.
D) the marginal private benefit to exceed the marginal social cost at the market equilibrium.