B&T Company's production costs for May are: direct labor, $13,000; indirect labor, $6,500; direct materials, $15,000; property taxes on production facility, $800; factory heat, lights and power, $1,000; and insurance on plant and equipment, $200. B&T Company's factory overhead incurred for May is: O $6,500 $8,500 0 $2,000 $21.500 0$36.500