An Argument in Favor of the "Full-Cost" Approach to Cost

An argument in favor of the "full-cost" approach to cost allocation is:

A) In the long run all costs are fixed.
B) With a good accounting system,we can accurately allocate any expense.
C) Essentially,the whole purpose of a marketing cost analysis is to determine the net profitability of the marketing unit being studied.
D) It is easy to establish defensible bases for allocating expenses.
E) It is a good basis for short-run decision making at the district or regional sales force level.