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': 'A 23 year old engineering student is brought by his family to the hospital with a history of gradual onset of suspiciousness, muttering and smiling without clear reason, decreased socialization, violent outbursts, and lack of interest in studies for 8 months. Mental status examination revealed a blunt affect, thought broadcast, a relatively preserved cognition, impaired judgment and insight. He is most likely to be suffering from - \nSelect and explain. \nA. Delusional disorder, B. Depression, C. Schizophrenia, D. Anxiety disorder', 'role': 'user'}, {'content': 'Answer: C \nExplanation: This patient has:-\n\n\nDelusions of control (thought broad casting)\nDisorganized speech (muttering)\nDisorganized behavior (smiling without clear reason, violent outbursts)\nNegative symptoms (blunted affect, lack of interest, decreased socialization).\nDuration of 8 months\n\n\nDiagnostic criteria for schizophrenia:- Two or more of the following symptoms (each should be present for 1 month or more) and causing social or occupational dysfunction for 6 months or more.\n\n\nDelusion \xa0\nHallucinations\n\xa0 \xa0Disorganized speech\nDisorganized or catatonic behavior\nNegative symptoms\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \nOnly one of the above is required if delusions are bizarre or there are third person hallucinations.', 'role': 'assistant'}]