Which of the Following Statements Is True About Rapists

Which of the following statements is true about rapists?

A) Almost all rapists show some evidence of sadism.
B) Most rapists are suffering from a DSM-IV-TR disorder at the time of the offense.
C) Sadistic rapists are the only rapists who show greater arousal to sexual assault on a woman than to consenting sex.
D) Serial sexual murderers are more common than was realized.
E) Almost all rapists also suffer from a personality disorder.