Keith Is a Perfectly Competitive Carnation Grower

Keith is a perfectly competitive carnation grower.The market price is $2 per dozen carnations.Keith's average total cost to grow carnations is $2.50 per dozen.In the long run,Keith will

A) raise his price to more than $2.50 per dozen carnations.
B) raise his price to $2.50 per dozen carnations.
C) exit the industry if the price and his costs do not change.
D) incur an economic loss.
E) continue to make an economic profit.