One Thing That Makes Monopolistic Competition Similar to Perfect Competition

One thing that makes monopolistic competition similar to perfect competition is that,in the

A) long run,both are guaranteed positive economic profit.
B) short run,both are guaranteed positive economic profit.
C) short run,neither can earn positive economic profit.
D) long run,both will earn zero economic profit.
E) long run,both could earn positive economic profit,but monopolistic competitors will earn more than perfect competitors.