Consider the following costs and decision-making situations: I. The cost of existing inventory, in a keep vs. disposal decision. II. The cost of special electrical wiring, in an equipment acquisition decision. III. The salary of a supervisor who will be transferred elsewhere in the organization, in a department-closure decision. Which of the above costs is (are) relevant to the decision situation noted?

A. I only.

B. II only.

C. III only.

D. I and II.

E. II and III.