The correct choice is "social roles are powerful determinants of human behavior".
The central idea of the Stanford Prison Experiment was that people tend to give in and change their behavior according to the given situation instead of relying in their own personal liking or behavior. The main idea was to understand the results and effects of a given role on an individual.A psychologist Philip Zimbardo was the man behind the experiment in 1971 who received immense criticism for his experiment later.
