The Free Entry and Exit of Firms in a Competitive

The free entry and exit of firms in a competitive price-searcher market guarantees that

A) both economic profits and economic losses can persist in the long run.
B) both economic profits and economic losses disappear in the long run.
C) economic profits, but not economic losses, can persist in the long run.
D) economic losses, but not economic profits, can persist in the long run.