The Fact That Ordinary Group Members of Groups Such as Fraternities/sororities

The fact that ordinary group members of groups such as fraternities/sororities will heed commands to brutally haze initiates indicates that

A) under the sway of evil forces, even nice people are sometimes corrupted.
B) ordinary people are may be corrupted.
C) human nature is evil.
D) leaders always make ordinary people go astray. or divert them from the right way of living.