Which of the Following Is Not a Reasonable Criticism of the Stanford

Multiple Choice

Which of the following is not a reasonable criticism of the Stanford University prison study?

A) All of the participants were younger than 30 years old.
B) Lack of random assignment made it possible that the individuals assigned to be guards were generally more sadistic.
C) Participants were not real prisoners and guards,so their behavior may not be representative.
D) Some of the participants endured pain and suffering,making the study ethically questionable.