product are given below: Selling price Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Variable selling expense Fixed selling and administrative expense The above per unit data are based on annual production of 4,000 units of the component. Assume that direct labor is a variable cost. Per Unit $ 220 $ 38 1 8 $ 16 4 $ 16 os on nnnn What is the current contribution margin per unit for component P06 based on its selling price of $220 and its annual production of 4,000 units? O $51 per unit O $173 per unit O $169 per unit O $137 per unit