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

-A firm, such as a public utility, which is the sole producer in a market in which the government determines prices and standards of service, is known as a(n) :

A) local monopoly.
B) natural monopoly.
C) regulated monopoly.
D) oligopoly.
E) monopolistically competitive firm.