In Sigmund Freud's Psychoanalytical Theory, the Id Is the Part

In Sigmund Freud's psychoanalytical theory, the id is the part of the psyche that is believed to be responsible for

A) mediating between instinctual drives and reality.
B) setting moral limitations on action.
C) harboring the instinctual drives for sex, aggression, and pleasure.
D) clinging to the mother even after adulthood is reached