Rose Company has a relevant range of production between 9,000 and 25,000 units. The following cost data represents average cost per unit for 15,000 units of production Average Cost per Unit Direct Materials Direct Labor Indirect Materials Fixed manufacturing overhead Variable manufacturing overhead Fixed selling and administrative expenses Variable sales commissions $13 9 1 5 Using the cost data from Rose Company, answer the following questions: For A. and B., what is the variable manufacturing/production costs per unit if... A. 9,000 units are produced? Variable cost per unit B. 17,000 units are produced, what is the variable cost per unit? Variable cost per unit s For C. and D., what is the total manufacturing/production costs per unit if... c. 21,000 units are produced? Total variable costs s D. 12,000 units are produced?