6. Use the following information to answer this question. Harris Company produces a single product. Last year, Harris manufactured 17,000 units and sold 13,000 units. Production costs for the year were as follows: Production Cost Data Direct materials $153,000 Direct labor $110,500 Variable manufacturing overhead $204,000 Fixed manufacturing overhead $255,000 Sales were $780,000 for the year, variable selling and administrative expenses were $88,400, and fixed selling and administrative expenses were $170,000. There was no beginning inventory. Assume that direct labor is a variable cost. The contribution margin per unit was A. $32.50. B. $17.50. C. $25.70. D. $27.30. THE ANSWER IS NOT D, already tried that