ExpertNet Systems is a start-up company that makes connectors for high-speed Internet connections. The company has budgeted variable costs of $ 110 for each connector and fixed costs of $ 7 comma 000 per month. ExpertNet 's static budget predicted production and sales of 100 connectors in August, but the company actually produced and sold only 80 connectors at a total cost of $ 22 comma 000 . ExpertNet 's sales volume variance for total costs is

A. $6,200 U

B. $2,200 F

C. $2,200 U

D. $6,200 F