Which of the Following Statements Concerning Suicide Is True

Which of the following statements concerning suicide is true?

A) People living with firearms are no more likely to commit suicide than the general population.
B) Pharmaceutical medication is the most commonly used treatment for suicide in the United States.
C) A woman who has a friend or relative commit suicide has a higher chance of suicide herself.
D) About one-half of the people who commit suicide have a substance abuse problem or some form of diagnosable mental illness.