One World View Article Titled "Economy Threatens Catfish Industry" Describes

One World View article titled "Economy Threatens Catfish Industry" describes the increased competition in the catfish market.Which of the following is not true for a perfectly competitive industry in the long run?

A) When economic profits exist in an industry, more producers try to enter.
B) As firms enter, prices and economic profits decline.
C) Individual firms possess significant market power.
D) When losses are incurred, firms begin to exit the industry.