Which of the following statements about variances is true? A. If total cost of inputs is 9% higher than budgeted, sales volume is 20% higher than budgeted, and input price is 10% more than budgeted, the result is a favorable input price variance B. If sales revenue is 16% less than budgeted, sales volume is 20% higher than budgeted, and sales price is 30% less than budgeted, the result is an unfavorable input quantity variance C. If total cost of inputs is 9% higher than budgeted, sales volume is 20% higher than budgeted, and input price is 10% more than budgeted, the result is a unfavorable sales volume variance D. If sales revenue is 16% less than budgeted, sales volume is 20% higher than budgeted, and sales price is 30% less than budgeted, the result is a favorable sales volume variance