Wadhams Snow Removal's cost formula for its vehicle operating cost is $1,900 per month plus $430 per snow-day. For the month of December, the company planned for activity of 16 snow-days, but the actual level of activity was 21 snow-days. The actual vehicle operating cost for the month was $11,470. The vehicle operating cost in the planning budget for December would be closest to: A) $10,930 B) $11,470 C) $8,739 D) $8,780