At a Competitive Equilibrium,if There Are No Taxes,subsidies,price Regulations,quantity Regulations,or

Multiple Choice

At a competitive equilibrium,if there are no taxes,subsidies,price regulations,quantity regulations,or externalities,

A) the marginal benefit is greater than the marginal cost.
B) resource use is efficient.
C) the marginal benefit is less than the marginal cost.
D) both the marginal benefit and the marginal cost of the last unit produced equal zero.
E) the marginal benefit is greater than the marginal cost by as much as possible.