In the Stanford Prison Study,male College Students Agreed to Participate

In the Stanford Prison Study,male college students agreed to participate in a two-week experiment to discover what would happen when they took on the roles of prisoners and guards.The researchers found that

A) both prisoners and guards quickly fell into their roles and behaved accordingly.
B) the majority of participants who were assigned to be prisoners,rebelled against the guards,refusing to follow their demands.
C) the majority of guards engaged in fair and ethical treatment of the prisoners.
D) when participants knew they were part of a study with no 'real-world' implications,they had difficulty taking on assigned roles.