The correct answer is B. narcissistic.
In dissociative identity disorder (DID), formerly known as multiple personality disorder, an individual develops two or more distinct identities or personality states. These identities may have their own names, characteristics, and behaviors, and may emerge in response to different situations or triggers.
One of the identities in an individual with DID is typically considered the primary identity or host personality, which is the identity that is most frequently present and that identifies as the person's true self. This primary identity may be more stable and consistent than the other identities, and may have a more integrated sense of self.
However, contrary to the other options listed, research suggests that the primary identity in individuals with DID may be more narcissistic or self-centered than the other identities. This may be because the primary identity is more likely to have developed as a coping mechanism to deal with early life trauma, and may have a stronger need to protect itself and maintain control.