Question:

The short-run supply curve of a perfectly competitive firm

A.

is equal to that portion of the short-run marginal cost curve that is above the average variable cost curve

B.

is equal to that portion of the short-run marginal cost curve that is above the average total cost curve

C.

is equal to that portion of the short-run average total cost curve that is above the average variable cost curve

D.

None of the above is correct

Answer» a. is equal to that portion of the short-run marginal cost curve that is above the average variable cost curve