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': '18 years old male hears voices discussing him in 3rd person has \nSelect and explain. \nA. Obsession, B. Depression, C. Mania, D. Schizophrenia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Voices discussing the person in 3rd person (third person hallucination) is characteristic of schizophrenia.', 'role': 'assistant'}]