No need to show work, I will upvote correct answer

Use this information about Department A to answer the question that follow. Department A had 4,500 units in Work in Process that were 79% completed as to labor and overhead at the beginning of the period. 36,800 units of direct materials were added during the period, 38,600 units were completed during the period, and 2,700 units were 20% completed as to labor and overhead at the end of the period. All materials are added at the beginning of the process. The first-in, first-out method is used to cost inventories. The number of equivalent units of production for material costs for the period was a. 38,600 b. 41,300 C. 36,800 O d. 34,100