Use the Following to Answer Question(s)

Multiple Choice

Use the following to answer question(s) :
Exhibit: A Perfectly Competitive Firm in the Short Run

-(Exhibit: A Perfectly Competitive Firm in the Short Run) A perfectly competitive firm's supply curve is the:

A) entire MC curve.
B) rising part of MC beginning at the shutdown point.
C) rising part of MC beginning at the point at which the firm starts earning economic profit.
D) MC curve below the shutdown point.