Indicate whether each of the following costs of an automobile manufacturer would be classified as direct materials, direct labor, or manufacturing overhead. (a) select an option Windshield. (b) select an option Engine. (c) select an option Wages of assembly line worker. (d) select an option Depreciation of factory machinery. (e) select an option Factory machinery lubricants. (f) select an option Tires. (g) select an option Steering wheel. (h) select an option Salary of painting supervisor.