Question 9 (1 point). At the beginning of the recent period, there were 900 units of product in a department, one-third completed. These units were finished and an additional 5,000 units were started and completed during the period. 800 units were still in process at the end of the period, one-fourth completed. Using the FIFO method, the equivalent units produced by the department were a 5,900 units. b 6,100 units. c 5,800 units. Od 6,700 units.