If Firms in a Competitive Market Are Making Zero Economic

Multiple Choice

If firms in a competitive market are making zero economic profits,the long-run market supply curve

A) is above the point where the short-run market supply curve and the demand curve intersect.
B) is below the point where the short-run market supply curve and the demand curve intersect.
C) and the short-run market supply curve and the demand curve all intersect at the same point.
D) shifts upward.
E) shifts downward.