Which of the Following Is True with Regard to Psychopathy

Which of the following is true with regard to psychopathy?

A) Psychopathy is one specific category of a psychotic classification in psychiatry.
B) Punishment is less likely to affect a psychopath versus a normal person.
C) Psychopaths are poorly suited to jobs in high finance or politics.
D) Psychopaths represent at least 50% of the prison population.
E) Rewarding psychopaths is the most effective way to control them.