The following information is available for the Gabriel Products Company for the month of July: Static Budget Actual Units 5,000 5,100 Sales revenue $60,000 $58,650 Variable manufacturing costs $15,000 $16,320 Fixed manufacturing costs $18,000 $17,000 Variable marketing and administrative expense $10,000 $10,500 Fixed marketing and administrative expense $12,000 $11,000 The total sales-volume variance for the month of July would be O A S100 favorable. O B. $2,550 unfavorable. OC. $1,350 unfavorable. OD. $700 favorable