For a perfectly competitive firm,the short-run supply curve is the:

A) entire MC curve.
B) rising part of the MC curve beginning at the shut-down point.
C) rising part of the MC curve beginning where the firm starts earning economic profit.
D) MC curve below the shut-down point.

MC Curve

Stands for Marginal Cost Curve, depicting the cost of producing one additional unit of a good.

Shut-down Point

The level of operations at which a company's revenue is exactly equal to its variable costs, and it is indifferent between continuing operations and shutting down.

Economic Profit

The deviation between complete revenue and cumulative liabilities, including both named and unnamed expenses.