Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
Scenario: Ben and Nik
Ben and Nik are the only members of a community.They have revealed the marginal private benefits they each receive from a public good whose marginal social benefit is known.In addition,the marginal social cost (MSC) of the public good is known and is constant.
-(Scenario: Ben and Nik) Use Scenario: Ben and Nik.At Q₂ in the figure,the marginal social benefit from the last unit of the public good is:

A) equal to the marginal social cost.
B) equal to P₄ + P₃.
C) the optimal level of provision of the public good.
D) zero for Nik.