Which pair of features defines dissociative identity disorder?

1. People with dissociative identity disorder exhibit two or more separate personalities or identities, each well defined and distinct. 2. They also experience memory gaps covering the time during which another identity was in charge. 3. In some cases they report hearing voices, such as a child voice or the sound of somebody crying. 4. Traumatic events with intrusive memories describe posttraumatic stress disorder, and manic episodes describe bipolar disorder. 5. Those with this disorder tend to report a history of childhood trauma, some of it corroborated by medical or legal records. _Source: OpenStax Psychology (1st ed., CC BY 4.0), Ch 15 "Psychological Disorders", section 15.9 Dissociative Disorders_