In Milgram's Obedience Experiments

In Milgram's obedience experiments:

A) most of the participants calmly obeyed the orders to shock the 'learners'
B) only female participants obeyed the orders to shock the 'learners'
C) the participants were punished for shocking the 'learners'
D) only the naturally aggressive participants reached the 450 volt level
E) situational factors were critical in eliciting destructive obedience