ProNet Systems is a start-up company that makes connectors for high-speed Internet connections. The company has budgeted variable costs of \\( \\$ 105 \\) for each connector and fixed costs of \\( \\$ 8,000 \\) per month. ProNet's static budget predicted production and sales of 100 connectors in August, but the company actually produced and sold only 72 connectors at a total cost of \\( \\$ 24,000 \\). ProNet's sales volume variance for total costs is A. \\( \\$ 8,440 \\mathrm{~F} \\). B. \\( \\$ 2,940 \\mathrm{U} \\). C. \\( \\$ 2,940 \\mathrm{~F} \\). D. \\( \\$ 8,440 \\mathrm{U} \\)