If a Competitive Firm's Marginal Cost Curve Is U-Shaped, Then

Multiple Choice

If a competitive firm's marginal cost curve is U-shaped, then:

A) its short-run supply curve is U-shaped too
B) its short-run supply curve is the downward-sloping portion of the marginal cost curve
C) its short-run supply curve is the upward-sloping portion of the marginal cost curve
D) its short-run supply curve is the upward-sloping portion of the marginal cost curve that lies above the short-run average variable cost curve
E) its short-run supply curve is the upward-sloping portion of the marginal cost curve that lies above the short-run average total cost curve