If a Monopoly Firm Is Continually Earning Above-Normal Profits,then

Multiple Choice

If a monopoly firm is continually earning above-normal profits,then

A) the entry of new firms will reduce profits to normal in the long run
B) the profits may remain above-normal in the long run despite the entry of new firms
C) market forces other than the entry of new firms will reduce profits to normal in the long run
D) falling market demand due to the firm's high prices will reduce profits to normal in the long run
E) barriers to entry may enable the profits to remain above-normal in the long run