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5. [5 points]. Sequoia Manufacturing Inc. uses a weightedaverage process cost system to account for the cost of producing a PVC (Polyvinyl Chloride] compound. As part ofthe production, a type of oil (OilXYZ] is added when the goods are 55% complete. Beginning workinprocess inventory for the current month was 2,000 units, 70% complete. During the month, 8,000 units were started in process, and 7,500 units were completed. There were no lost or spoiled units. If the ending inventory was 40% complete, the total equivalent units for OilXYZ for the month were: a. 2,500 b. 10,000 c. 7,500 d. 3,500 e. None of the answeris correct. Explain your