Expected future information that differs among alternative courses of action are referred to as: 17. A. Irrelevant information. B. Historical information. C. Predictable information. D. Relevant information. 18. Which of the following describes a sunk cost? A. One that is relevant to a decision because it changes depending on the alternative course of action selected B. An outlay expected to be incurred in the future C. A past cost that is always irrelevant D. A past cost that may be relevant The benefit foregone by not choosing an alternative course of action is referred to as a(n) A. Opportunity cost. B. Sunk cost. C. Variable cost. D. Incremental cost. 19. In deciding whether to sell a joint product "as is" or process it further, which of the fol pieces of information would NOT be relevant to the decision? A. Costs of additional processing after the split-off point. B. Costs incurred up to the split-off point. C. Sales price if processed further after the split-off point. D. Sales price at split-off point