To Receive a Diagnosis of Derealization Disorder, the Person Must

To receive a diagnosis of derealization disorder, the person must:

A) have frequent and distressing depersonalization episodes that disrupt functioning.
B) have been under the influence of an illicit drug or be chronically sleep deprived.
C) have alternating personalities trying to gain control.
D) have been exposed to a traumatic event such as sexual assault.