Presented below are Sheridan Company's monthly manufacturing cost data related to its personal computer products. a. Hard drives and memory sticks $25,800 b. Wages to assemble equipment $55,900 C. Insurance on manufacturing building $35,260 d. Wages for factory supervisors $55,040 Enter each cost item in the following table, placing an 'X' under the appropriate headings. a. b. C. d. Product Costs Direct Materials Direct Labor Manufacturing Overhead