Final answer:
Freud proposed three levels of consciousness: conscious, preconscious, and unconscious.
Explanation:
Sigmund Freud proposed that human consciousness is divided into three levels of awareness: conscious, preconscious, and unconscious. The conscious level comprises things we are currently aware of, the preconscious contains material that can become conscious with attention, and the unconscious holds suppressed memories and desires.
Learn more about levels of consciousness here:
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