MajorNet Systems is a start-up company that makes connectors for high-speed Internet connections. The company has budgeted variable costs of $145 for each connector and fixed costs of $7,500 per month. Major Net's static budget predicted production and sales of 100 connectors in August, but the company actually produced and sold only 84 connectors at a total cost of $21,000 Major Ner's sales volume variance for total costs is O A. $1,320 O B. $1,320 F. O C. $2,320 U OD. $2,320 F