Department G had 2,280 units 25% completed at the beginning of the period, 13,800 units were completed during the period, 1,900 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 $33,100 Work in process, beginning of period Costs added during period: Direct materials (13,420 units at $8) 107,360 Direct labor 79,800 26,600 Factory overhead 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)? O a. $18,171 b. 517,428 O c. $15,200 O d. 523,622