Monopolistic competition is similar to monopoly because

A. in both industry structures, there are barriers to entry.

B. in both industry structures, the firm's demand curve is downward sloping.

C. both industry structures have many sellers.

D. in both industry structures, long minus run profits will be equal to zero.

B. in both industry structures, the firm's demand curve is downward sloping.

Explanation:

Both firm types have a downward sloping demand curve which indicates that as price is increased, quantity demanded falls.

Monopolistic competition have no barriers to entry while a monopoly does.

Monopolistic competition have many sellers while a monopoly has one seller.

Monopolistic competition break even in the long run while monopoly maintain super normal profits in the long run