Russo Corporation manufactured 15,000 air conditioners during November. The overhead cost-allocation base is $33.25 per machine-hour. The following variable overhead data pertain to November Actual Production Machine-hours Variable overhead cost per machine-hour What is the flexible-budget amount? OA. $399,000 OB. $396,000 OC. $441,394 OD. $475,200 Budgeted 15,000 units 18,000 units 13,275 hours 14,400 hours $33.00 $33.25