Which Statement Is True of the Human Instinct for Aggression

Which statement is true of the human instinct for aggression?

A) There is no such thing.
B) Humans do seem to have an instinct for aggression, and culture seems to have little impact on it.
C) Humans do seem to have an instinct for aggression, and, in general, culture tends to feed that instinct and encourage even more aggression.
D) Humans do seem to have an instinct for aggression, but, in general, culture tends to curb that instinct and reduce aggression.