If an External Benefit Is Present,then the

Multiple Choice

If an external benefit is present,then the

A) marginal private benefit curve lies above the marginal private cost curve.
B) marginal social benefit curve lies above the marginal private benefit curve.
C) marginal social cost curve lies above the marginal private benefit curve.
D) marginal social benefit is equal to the marginal social cost.
E) marginal social benefit curve is the same as the marginal private benefit curve.