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The static budget, at the beginning of the month, for Wadsworth Compe Static budget: Sales volume: 2,000 units; Sales price: $50 per unit Variable costs: $13 per unit; Fixed costs: $25,200 per month Operating income: $48,800 Actual results, at the end of the month, follows: Actual results: Sales volume: 1,900 units; Sales price: $59 per unit Variable costs: $16.50 per unit; Fixed costs: $33,800 per month Operating income: $46,000 Calculate the flexible budget variance for operating income. A. $3,700U B. $16,150F C. $3,700F D. $900F