. Russo Corporation manufactured 20,000 air conditioners during November. The overhead cost-allocation base is $34.25 per machine-hour. The following variable overhead data pertain to November: X Production Machine-hours Variable overhead cost per machine-hour Actual 20,000 units 9,000 hours $34.00 Budgeted 22.000 units 11,000 hours $34.25 What is the total variable overhead variance? O A. $5,900.00 favorable OB. $5,900.00 unfavorable C. $3,425.00 favorable OD. $3,425.00 unfavorable