Presented below is a list of costs and expenses usually incurred by Barnum Corporation, a manufacturer of furniture, in its factory. Classify the below items into the following categories: (a) direct materials, (b) direct labor, and (c) manufacturing overhead. Item Category 1. Salaries for assembly line inspectors. select a category 2. Insurance on factory machines. select a category 3. Property taxes on the factory building. select a category 4. Factory repairs. select a category 5. Upholstery used in manufacturing furniture. select a category 6. Wages paid to assembly line workers. select a category 7. Factory machinery depreciation. select a category 8. Glue, nails, paint, and other small parts used in production. select a category 9. Factory supervisors’ salaries. select a category 10. Wood used in manufacturing furniture.