At the beginning of the recent period, there were 1,860 units of product in a department, one-third completed. These units were finished and an additional 9,000 units were started and completed during the period. 1,120 units were still in process at the end of the period, one-fourth completed. Using the weighted-average valuation method, the equivalent units produced by the department were: 11,980 units. 10,40 units. 11.,40 units. 13,500 units. 10,520 units