Reese Ltd.'s records shows the following balances for the year 20x2 Direct materials, beginning inventory Direct materials, ending inventory Direct material purchases 1641 Advertising expense Indirect labour Selling costs Depreciation on administrative office equipment Direct labour Property taxes on factory building Administrative salaries $59342 89253 281209 93913 48210 42314 221620 19580 305889 What were Reese's product costs for the year? Select one O a. $677622 b. $451525 O c. $421614 O d. S