A Single-Price Monopoly Is Economically Inefficient Because, at the Profit-Maximizing

A single-price monopoly is economically inefficient because, at the profit-maximizing output,

A) marginal revenue exceeds product price at all profitable levels of production.
B) monopolists always price their products on the basis of the ability of consumers to pay rather than on costs of production.
C) MC > P.
D) society values additional units of the monopolized product more highly than it does the alternative products those resources could otherwise produce.