A company uses standard marginal costing. Last month, when all sales were at the standard selling price, the standard contribution from actual sales was Total variable costs variance 3,500 Adverse Total fixed costs variance 1,000 Favourable Sales volume contribution variance 2,000 Favourable What was the actual contribution for last month?
A．$47,500
B．$46,500
C．$49,500
D．$48,500