Blackwelder Factory produces two similar products: small table lamps and desk lamps. The total factory overhead budget is $644,000 with 480,000 estimated direct labor hours. It is further estimated that small table lamp production will require 263,000 direct labor hours, and desk lamp production will need 125,000 direct labor hours. Using a single plantwide factory overhead rate with an allocation base of direct labor hours, the factory overhead that Blackwelder Factory will allocate to small table lamp production if actual direct labor hours for the period for small table lamp production is 237,000 would be Oa. $703,355 Ob. $317,580 Oc. $714,650 Od. 5780,516