Which of the Following Was a Key Theme That Emerged

Which of the following was a key theme that emerged from research conducted by Milgram?

A) The greater the " psychological distance" between the teacher and the learner,the less the obedience.
B) Obedient participants demonstrated higher levels of personality traits such as sadism and aggressive tendencies than did disobedient participants.
C) The greater the "psychological distance" between the teacher and the experimenter,the less the obedience.
D) Participants with low levels of the personality trait authoritarianism were more likely to comply with the experimenter's demands.