Which of the Following Statements Is Correct

Multiple Choice

Which of the following statements is correct?

A) Firms with some degree of monopoly power are common, but firms with substantial monopoly power are rare.
B) Firms with some degree of monopoly power are rare, as are firms with substantial monopoly power.
C) Firms with some degree of monopoly power are common, as are firms with substantial monopoly power.
D) Firms with some degree of monopoly power are rare, but firms with substantial monopoly power are common.