This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
A person has different multiple personalities is suffering from - 
Select and explain. 
A. Mania, B. Personality disorder, C. Paranoid schizophrenia, D. Dissociative disorder
D: Dissociative disorder
Answer: D: Dissociative disorder 
Explanation: More than one personality appears to possess the individuals, showing their characteristic behavior is seen in dissociative identity (multiple personality) disorder.