XYZ company's prime costs total OMR 5,000,000 and its conversion costs total OMR 9,000,000. If direct materials are OMR 1,500,000 and factory overhead is OMR 5,500,000, then direct labor is: a. OMR 4,000,000. b. OMR 2,000,000. OMR 3,000,000. d. OMR 3,500,000. OMR 1,000,000