A company sells a product with the following unit standard cost card: Selling price Variable cost Fixed production overhead $ 50 20 5 Profit 25 This information is based on budgeted sales of 1,700 units. Actual selling price was $48, unit variable costs were $22 and unit fixed cost $4. Actual sales were 1,800 and 1,950 units were made. The company currently uses marginal costing. What was the sales volume variance? O a. $5,000 (F) O b. $6,000 (F) O c. $4,500 (F) O d. $3,000 (F)