This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia and other psychotic disorders, Subject name: Psychiatry
[{'content': 'According to ICD 10, the symptoms of schizophrenia should persist for how long for its diagnosis? \nSelect and explain. \nA. 2 months, B. 1 month, C. 6 months, D. 2 weeks', 'role': 'user'}, {'content': 'Answer: B \nExplanation: According to recent ICD 10, It is 1 month and according to DSM 5 it is 6 months to diagnose schizophrenia Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg 365', 'role': 'assistant'}]