When Firms in Monopolistic Competition Are Making an Economic Profit,firms

When firms in monopolistic competition are making an economic profit,firms will

A) enter the industry, and demand will increase for the original firms.
B) exit the industry, and demand will increase for the firms that remain.
C) exit the industry, and demand will decrease for the firms that remain.
D) enter the industry, and demand will decrease for the original firms.
E) enter the industry and then will exit the industry.