Remaining Time: 20 minutes, 40 seconds. Question Completion Status: 15,100 units QUESTION 19 Which of the following is true about step costs: They are variable within narrowly defined ranges of activity but differ outside those ranges of activity They increase with each additional unit produced They have no relation to the number of units produced They are constant within certain ranges of activity but differ outside those ranges of activity QUESTION 20 A basic assumption of the cost volume profit model is that: Cost drivers can be organized into unit-level, batch-level, product-level and facility level factors Click Save and Submit to save and submit. Click Save All Answers to save all answers