One Disadvantage of Average-Cost Pricing Is That

One disadvantage of average-cost pricing is that

A) average-cost pricing does not consider historical values.
B) average-cost pricing is a highly complicated method.
C) the average cost is rarely useful information in making pricing decisions.
D) it is easy to lose money with average-cost pricing.
E) average-cost pricing does not help understand how costs operate at different levels of output.