Figure: a Perfectly Competitive Firm in the Short Run

Figure: A Perfectly Competitive Firm in the Short Run
(Figure: A Perfectly Competitive Firm in the Short Run) Look at the figure A Perfectly Competitive Firm in the Short Run.The firm's short-run supply curve is the:
A.entire MC curve.
B.rising part of the MC curve beginning at point W.
C.rising part of the MC curve beginning at the point at which the firm starts earning economic profit.
D.MC curve below point P.