Answer:
c. id
Explanation:
According to psychoanalytic theory, the id is the most basic personality system. According to Sigmund Freud that human psyche is made of three parts, the id, the ego, and the superego. These three systems have are not part of the brain. The id personality system has unconscious energy that thrives to satisfy needs and desires. The id is operated by the pleasure principle which wants immediate satisfaction without caring for the reality principle that operates the ego.