Answer:
4. dissociative identity disorder (DID).
Explanation:
Dissociative identity disorder: In abnormal psychology, the term dissociative identity disorder is also referred with the term DID, and is also called as multiple personality disorder or MPD, is a mental health disorder or illness distinguished as an individual possessing at least two or more than enduring personality states.
The dissociative identity disorder in an individual is often accompanied by memory gaps, also referred to as ordinary forgetfulness. It includes problems with emotion, behavior, identity, perception, sense of self, etc.
In the question above, Hilda's case is a classic example of dissociative identity disorder.
