A Natural Monopoly's Output Is Less If It Is Regulated

Multiple Choice

A natural monopoly's output is less if it is regulated with

A) a marginal cost pricing rule than if it is unregulated.
B) an average cost pricing rule than if it is unregulated.
C) an average cost pricing rule than if it is regulated with a marginal cost pricing rule.
D) a marginal cost pricing rule than if it is regulated with an average cost pricing rule.
E) More information about the firm's demand is needed to determine how its output depends on what regulation it faces.