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

-Which of the following refers to a natural monopoly?

A) A monopoly resulting from government control
B) A monopoly resulting from economies of scale
C) A monopoly resulting from output leadership
D) A monopoly resulting from a large advertising budget
E) A monopoly resulting from trade restrictions