Which of the Following Statements Is True About Variances

Multiple Choice

Which of the following statements is true about variances?

A) Positive variances (i.e. ,those with a positive sign) are always favorable.
B) Positive variances (i.e. ,those with a positive sign) are always unfavorable.
C) Negative variances (i.e. ,those with a negative sign) are always favorable.
D) There is not necessarily any correlation between the sign of the result (positive or negative) and whether the variance is positive or negative.