The Argument That Supports Monopolies' Role in an Economy Is

The argument that supports monopolies' role in an economy is that:

A) they distribute income from firms to consumers.
B) they save valuable resources by producing less output than in perfect competition.
C) they charge a price in excess of the marginal cost.
D) they can use their profits to invest in research and development, increasing technological change.
E) there are no arguments that support monopolies.