A Condition Necessary for a Market to Achieve Economic Efficiency

Multiple Choice

A condition necessary for a market to achieve economic efficiency is that the market:

A) demand curve must include the willingness to pay of all members of society who benefit from the good.
B) demand curve must exclude the willingness to pay of all members of society who benefit from the good.
C) demand curve must include all opportunity costs imposed on society for producing the good.
D) supply curve must include the willingness to pay of all members of society who benefit from the good.