Which of the Following Quantities Decrease in Response to a Tax

Multiple Choice

Which of the following quantities decrease in response to a tax on a good?

A) the equilibrium quantity in the market for the good,the effective price of the good paid by buyers,and consumer surplus
B) the equilibrium quantity in the market for the good,producer surplus,and the well-being of buyers of the good
C) the effective price received by sellers of the good,the wedge between the effective price paid by buyers and the effective price received by sellers,and consumer surplus
D) None of the above is necessarily correct unless we know whether the tax is levied on buyers or on sellers.