Final answer:
The principles explaining the functioning of psychic energy according to Freud's theory are the pleasure principle, the reality principle, and the ego principle.
Step-by-step explanation:
The correct answer is c) The id principle. The principles explaining the functioning of psychic energy according to Freud's theory are:
- The pleasure principle
- The reality principle
- The ego principle
These principles refer to the different parts of the human psyche, namely the id, ego, and superego. The id is the most primitive part of the psyche that operates on the pleasure principle, seeking immediate gratification. The ego, on the other hand, operates on the reality principle, balancing the demands of the id and superego in a realistic way. The superego acts as the moral compass, guiding behavior based on social rules.