Which of the following is NOT one of the four archetypes identified by Carl Jung?

In Carl Jung's theory of archetypes, the persona, animus, and shadow are integral components of the collective unconscious that influence an individual's behavior and personality. The persona represents the social mask one wears in public and reflects how individuals wish to be seen by others. The animus symbolizes the inner masculine aspect in women, while the shadow comprises the unconscious, repressed, and often darker aspects of the self that individuals may not want to acknowledge.

The ego, however, is not classified as an archetype within Jungian theory. Instead, it is part of the psyche that mediates between the conscious mind, the personal unconscious, and the collective unconscious. The ego is primarily concerned with the individual’s sense of identity and reality, functioning to maintain balance and coherence in one's perception of self. Therefore, it does not fit into the category of archetypes that Jung identified.