4) Postal Service Inc. reports the following costs and expenses in June 2020 for its delivery service. 1. Indirect materials $ 6,400 2. Depreciation on delivery equipment 11,200 3. Dispatcher's salary 5,000 4. Property taxes on office building 870 5. CEO's salary 12,000 6. Gas and oil for delivery trucks 2,200 7. Drivers' salaries 16,000 8. Advertising 4,600 9. Delivery equipment repairs 300 10.Office supplies 650 11. Office utilities 990 12.Repairs on office equipment 180 Instructions: 1. Classify each of the items above using the following code: (A) direct materials; (B) direct labor; (C) manufacturing overhead; or (D) period cost. 2. Determine the total product cost and the total period cost