Mundes Corporation uses the weighted-average method in its process costing system. The beginning work in process inventory in its Painting Department consisted of 2,000 units that were 60% complete with respect to materials and 40% complete with respect to conversion costs. The cost of the beginning work in process inventory in the department was recorded as $8,800. During the period, 8,000 units were completed and transferred on to the next department. The costs per equivalent unit for the period were $4.00 for material and $5.00 for conversion costs. The cost of units transferred out during the month was:a. $63,200b. $40,000c. $80,800d. $72,000