In terms of systematic indoctrination, which of the following best characterizes the process of isolation?
a) provide recruits with a big problem/threat and introduce a scapegoat, a common enemy
b) expose recruits to propaganda that dehumanizes outside groups and glorifies accomplishments of insiders
c) pluralistic ignorance where one is unaware that others also have reservations about what they are being told to do
d) create an intense group experience to focus attention on the system as its moral priority and restrict access to competing ideas