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