A Reason for Squaring Deviations to Compute SS in the Numerator

Multiple Choice

A reason for squaring deviations to compute SS in the numerator includes which of the following?

A) The sum of the differences of scores from their mean is zero.
B) The sum of the squared differences of scores from their mean is minimal.
C) Squaring scores can be readily corrected by square rooting.
D) All of these.