MC ATC COST AVC 3 B D QUANTITY igs on Refer to Figure 13-5. Which of the following statements is correct? Marginal cost is rising for quantitics higher than D because marginal cost is higher than average total cost, se Average variable cost is declining for quantities less than 3 because marginal cost is lower than average variable COST ials Average total cost is declining for quantities less than C because average variable cost is less than average total COST Marginal cost is minimized at B because at that quantity, marginal cost equals average variable cost