Regarding Major Depression and Suicide Attempts, Which of the Following

Regarding major depression and suicide attempts, which of the following statements is TRUE?

A) Persons suffering from a major depression rarely attempt suicide.
B) A person suffering from a major depression usually gives numerous prior warnings before the suicide attempt.
C) The suicide attempts by people suffering from a major depression usually represent "a plea for help."
D) The person with a major depression who attempts suicide intends to succeed and may give no prior warning.