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
[{'content': 'Doppelganger is- \nSelect and explain. \nA. Shadow following person, B. Feeling of double of oneself, C. Indentification of stranger as familiar, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Feeling of double of oneself Doppelgangers (subjective double) is the delusion that there is double of oneself. A person feels that double of himself exists elswhere.", 'role': 'assistant'}]