Monopoly marginal cost regulation

CFA Level II Economics
#1

From the explanation of the mock question:

“Monopolists forced to operate where price equals marginal cost will suffer losses and go out of business rather than face such regulation.”

Since for monopoly, usually MC > ATC I cannot agree with above quote?

As I can price MC which is greater than ATC I have a gain?

http://images3.wikia.nocookie.net/__cb20100413040010/centralecon/images/2/2c/AVC_Graph_3.png

#2

u mess up concepts again, aco :smiley:

here is graph depict natural monoply http://www.appstate.edu/~whiteheadjc/eco3660/boardman/images/fig4-5.jpg