As per the schedule of cost of goods manufactured of Gemco Company, direct material used is OMR 4,000. In addition, factory overhead incurred OMR 1,000, indirect material used OMR 400, direct labour OMR 6,000 and factory overhead applied OMR 3,000. Using the given information, calculate total manufacturing costs. a. OMR 11,400 b. OMR 12,600 c. OMR 10,600 d. OMR 13,000