Which of the following statements regarding differential costs is (are) false?
(A). The full cost fallacy occurs when a decision-maker fails to include fixed manufacturingoverhead in the product's cost.
(B). When deciding whether or not to accept a special order, a decision-maker should focus on differential costs instead of full costs
- only A.
- only B.
- neither A nor B is false.
- both A and B are true.