Julia Company uses the FIFO method in its process costing system. Beginning inventory in the mixing department consisted of 6,000 units that were 75% complete with respect to conversion costs. Ending work in process inventory consisted of 5,000 units that were 60% complete with respect to conversion costs. If 12,000 units were transferred to the next department during the period, the equivalent units for conversion cost would be: O a. 13,500 units O b. 13,000 units C. 10,500 units O d. 12,500 units Clear my choice