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': 'Most common type of schizophrenia is: \nSelect and explain. \nA. Simple, B. Paranoid, C. Catatonic, D. Undifferentiated', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Paranoid', 'role': 'assistant'}]