Which of the Following Is NOT TRUE

Which of the following is NOT TRUE?

A) The range is a simplistic measure of variation that does not use all scores in a distribution
In its calculation.
B) When compared with the range, the average deviation is a more sophisticated measure of variation in which all scores are used, but which may not weight extreme scores adequately.
C) The standard deviation is the least sophisticated measure of variation and the least
Frequently used.
D) All of the above.