Rose Company has a relevant range of production between 10,000 and 25,000 units. The following cost data represents average cost per unit for 15,000 units of production. Expense Direct materials Direct labor Indirect materials Rose Company data Average Cost per Unit $12 10 2 4 3 8 25 Fixed manufacturing overhead Variable manufacturing overhead Fixed selling and administrative expenses Variable sales commissions Using the cost data from Rose Company, answer the following questions: A. If 10,000 units are produced, what is the variable cost per unit? B. If 18,000 units are produced, what is the variable cost per unit? C. If 21,000 units are produced, what are the total variable costs? D. If 11,000 units are produced, what are the total variable costs? E. If 19,000 units are produced, what are the total manufacturing overhead costs incurred?