Last year, Barnard Company incurred the following costs: Direct materials $ 50,000 Direct labor 20,000 Manufacturing overhead 130,000 Selling expense 40,000 Administrative expense 36,000 Barnard produced and sold 10,000 units at a price of $31 each. Refer to the information for Barnard Company above. Conversion cost per unit is a. $7.00 b. $20.00 c. $15.00 d. $5.00 e. $27.60