Which of the Following Is a FALSE Statement in Regard

Which of the following is a FALSE statement in regard to prediction of dangerousness?

A) Mental health professionals can predict with certainty if a particular person will become violent.
B) Generally speaking, people with a previous history of violence are more likely to be dangerous than individuals without a past history of violence.
C) Generally speaking, substance abusers are more likely to be violent than those individuals without a history of drug or alcohol dependence.
D) Research suggests that mental health professionals are better at determining relative risk than determining dangerousness on a case-by-case basis.