Suppose That an Economy Has 10 Basic Goods and Services

Suppose that an economy has 10 basic goods and services.If it were a barter economy it would need

A) more than four times as many prices as money economy.
B) more than twice as many prices as a money economy.
C) as many prices as a money economy.
D) half as many prices as a money economy.
E) less than a quarter as many prices as money economy.