According to Freud, Which Forces Lead a Person to Attempt

According to Freud, which forces lead a person to attempt or commit suicide?

A) A real or symbolic loss leads to a defense mechanism called introjection, which in turn leads to suicide as an extreme expression of internalized anger and self-hatred.
B) An inability to adequately overcome the Oedipus or Electra complex leads to a longing for an end to life that results in suicidal behaviors.
C) Fixation at the oral stage leads to behaviors that are overly expressive; thus suicide is the ultimate in "expressive" behaviors.
D) Death is seen as a way of getting in touch with one's own unconscious, so it is viewed by the victim as a desirable behavior.