What Did Research by Williamson Et Al

What did research by Williamson et al. (1987) comparing the nature of violent incidents perpetrated by psychopaths and nonpsychopaths find?

A) The psychopaths were less likely to have used violence for material gain.
B) The psychopaths were less likely to have committed murder.
C) The psychopaths were more likely to have exhibited heightened emotional arousal.
D) The psychopaths were more likely to have acted violently against a family member.
E) The psychopaths were more likely to target women.