What Does Sigmund Freud Believe to Be True About the Nature

What does Sigmund Freud believe to be true about the nature of aggression and violence?

A) Aggression and violence are indicative of individuals with a heightened death instinct.
B) Because aggression and violence are instincts we are born with there is no treatment for them.
C) The expression of aggression and violence may be controlled only through positive parenting which begins at birth.
D) Aggression and violence are learned strategies for dealing with pain and sadness.