Suppose That an Economy Has Four People,A,B,C,and D,whose Reported Marginal

Suppose that an economy has four people,A,B,C,and D,whose reported marginal benefits from a public good are $30,$40,$50,and $60,respectively.If the marginal cost of producing the public good is $200,then the quantity of the public good should be:

A) increased even if none of the individuals can be excluded.
B) increased only if individual A can be excluded.
C) decreased if none of the individuals can be excluded.
D) decreased unless individual A or B can be excluded.