Cybernet Systems is a start-up company that makes connectors for high-speed Internet connections. The company has budgeted variable costs of $120 for each connector and fixed costs of $9,000 per month. Cybernet's static budget predicted production and sales of 100 connectors in August, but the company actually produced and sold only 76 connectors at a total cost of $23,000. Cybernet's flexible budget variance for total costs is O A. $2,880 U. OB. $4,880 F. OC. $4,880 U. OD. $2,880 F