Consider a Firm in the Short Run

Consider a firm in the short run.If the AP curve is rising,then the MP curve

A) must lie above the average-product curve over this range and must also be rising.
B) must lie above the average-product curve over this range.
C) can be either above or below the average-product curve,although it must be rising over the entire range.
D) must lie below the average-product curve over this range.
E) must be falling.