Department M had 2,700 units 56% completed in process at the beginning of June, 12,500 units completed during June, and 1,500 units 31% completed at the end of June. What was the number of equivalent units of production for conversion costs for June if the first-in, first-out method is used to cost inventories? a. 14,465 units b. 11,453 units c. 12,965 units d. 9,800 units