The Figure Given Below Shows the Aggregate Demand and Supply

Multiple Choice

The figure given below shows the aggregate demand and supply curves of a perfectly competitive market.Figure 10.7

-Before World War II, Alcoa controlled the supply of bauxite in the United States. Because bauxite is a scarce resource that is vital to the production of aluminum:

A) Alcoa was bound to charge a nominal price in the U.S. aluminum market.
B) Alcoa had a monopoly in the U.S. aluminum market.
C) the U.S. aluminum market was highly competitive.
D) Alcoa can be said to have operated in a monopolistically competitive market.
E) Alcoa can be said to have operated in an oligopolistic market structure.