If the Market-Size Variance Is $650 F, the Sales-Mix Variance

If the market-size variance is $650 F, the sales-mix variance is $500 F, the flexible budget variance is $9,250 F, and the static budget variance is $8,000 U, which of the following is true?

A) The market share variance is $18,400 U.
B) The sales volume variance is $17,250 F.
C) The sales-quantity variance is $18,400 U.
D) The sales volume variance is $17,750 U.
E) The market share variance is $17,250 U.