Department G had 1,920 units 25% completed at the beginning of the period, 12,800 units were completed during the period, 1,600 units were 20% completed at the end of the period, and the following manufacturing costs debited to the departmental work in process account during the period: $28,100 Work in process, beginning of period Costs added during period: Direct materials (12,480 units at $8) 99,840 Direct labor 85,200 Factory overhead 28,400 All direct materials are placed in process at the beginning of production and the first-in, first-out method of inventory costing is used. The total cost of the departmental work in process inventory at the end of the period (round unit cost calculations to four decimal places and round your final answer to the nearest dollar)? a. $14,957 b. $15,676 c. $12,800 d. $20,379