Skepticism Exists Regarding the Use of Statistics in Age Discrimination

Skepticism exists regarding the use of statistics in age discrimination cases because

A) most lawyers are incapable of understanding statistical terms such as "expected value" and "standard deviation."
B) even in the absence of discrimination, older workers are likely to be replaced by younger workers as a result of attrition of the workforce.
C) in a disparate treatment class action or "pattern and practice" suit, only gross statistical disparities make out a prima facie case of discrimination.
D) All of the choices are correct.