Eve seeks treatment to learn how to relax. When her therapist hypnotizes her, her voice changes and someone claiming her name is "Joan" begins to speak. During therapy, 23 separate entities, each with its own name, personal style, and memories emerge. Eve appears to be suffering from ______ disorder.

A) depersonalization/derealization
B) dissociative identity
C) conversion
D) schizoid personality

The scenario described is a classic example of dissociative identity disorder, commonly known as multiple personality disorder. This disorder involves the presence of two or more distinct personality states, each with its own way of perceiving and interacting with the world, as well as its own memories and behaviors. Depersonalization/derealization disorder involves a persistent feeling of detachment or unreality, conversion disorder involves physical symptoms that have no underlying medical cause, and schizoid personality disorder is a personality disorder characterized by social withdrawal and emotional detachment.