Sailing an ocean cargo ship slower to save on the expense of fuel as opposed to sailing it faster to save time and therefore allow it to make more deliveries makes sense if the​ ________ of sailing slower is less than the​ ________ of sailing slower. Question content area bottom Part 1 A. marginal​ benefit; marginal cost B. marginal​ cost; opportunity cost C. marginal​ benefit; opportunity cost D. marginal​ cost; marginal benefit