Final answer:
Human beings' basic drives or needs are reflected in Freud's concept of the id, which seeks immediate gratification based on the pleasure principle.
Step-by-step explanation:
Human beings' basic drives, or needs, are reflected in Freud's concept of the id. The unconscious id contains our most primitive drives and urges and is present from birth. It operates according to the pleasure principle, seeking immediate gratification of needs such as hunger, thirst, and sex. This is in contrast to the ego, which functions according to the reality principle, aiming to satisfy the id's desires in a realistic and socially appropriate manner, and the superego, which acts as our moral compass and strives for perfection.