Why was the Stanford prison experiment stopped after only a few days? A. The students acting as guards became aggressive and cruel.
B. The students had not consented to be part of the experiment.
C. The students acting as prisoners became violent and hard to control.
D. The students who were guards began showing signs of extreme distress.

A. The students acting as guards became aggressive and cruel.

Explanation:

B. The  students were aware of  what they were  getting  into- and signed documents to get  into the experiment  and were  even paid to do so.

C. The  prisoners didn't  become violent- far from it really, it was the  guards who did as t hey were  "conditioned" to be more violent after being pressured to do so.

D.  It wasn't the guards t hat showed any distress, but the prisoners, some having mental breakdowns and even screaming to be want  to be let out.

they thoght they were going to nuke each other

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