O zero QUESTION 17 Which of the following costs are always irrelevant in decision making? O avoidable costs O sunk costs O opportunity costs O fixed costs QUESTION 18 Costs that can be eliminated in whole or in part if a particular business segment is discontinued are called O sunk costs opportunity costs. avoidable costs. irrelevant costs. QUESTION 19 Click Save and Submit to save and submit. Click Save All Answers to s