A company uses the weighted average method for inventory costing. During a period, a production department had 56,000 units in beginning goods in process inventory which were 32% complete; the department completed and transferred 167,000 units. At the end of the period, 14,000 units were in the ending goods in process inventory and are 67% complete. All of these are with respect to labor. The production department had labor costs in the beginning goods is process inventory of $89,000 and total labor costs added during the period are $726,600. Compute the equivalent cost per unit for labor. A. $4.83. B. $4.62. C. $4.26. D. $4.47. E. $4.68.