Use the diagram below whichdiagram shows the short-run conditions of a firm in a perfectly competitive market to answer the question.

In the long run, ____ firms will ____ the industry so that the market supply curve shifts to the _____, until prices ______ sufficiently so that all firms make a normal profit only.

new firms; enter; right; decrease.

existing firms; exit; left; increase.

existing firms; exit; right; decrease.

new firms; enter; left; increase.