The following calendar year-end information is taken from the December 31, 2017, adjusted trial balance and the other records of Best Bikes.

Advertising expense . . .. 20,250 Depreciation expense-Office equipment..8 Depreciation expense-Selling equipment. 10,125 Depreciation expense-Factory equipment Factory supervision. Factory supplies used.... 8,440 Office salaries expense 70,875 35,400 Rent expense-Office space 21,500 Rent expense-Selling space 6,060 Rent expense-Factory building.93,500 37,500 Maintenance expense-Factory equipment 23,625 30,375 ....562,500 Sales 4,942,625 295,300 Sales salaries expense... Required 1. Classify each cost as either a product or period cost. 2. Classify each product cost as either direct materials, direct labor, or factory overhead. 3. Classify each period cost as either selling expenses or general and administrative expenses