Which of the following would NOT be included in manufacturing overhead? O Salaries paid to the factory security guard O Insurance paid on the plant facilities O Property taxes paid on the warehouse where raw materials are stored O Depreciation on trucks used to deliver finished goods to customers According to the general cost classification rules, a period cost can be defined as: O a cost that is capitalized in the form of asset until the next period begins. O a cost that is assigned to units of product we make in the current period. O a cost that is expensed in the accounting period in which it is incurred. O any cost incurred during a specific period of time