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': 'Characteristic symptoms of catatonic schizophrenia is \nSelect and explain. \nA. Stuptor, B. Rigidity, C. Negativism, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. All of the above', 'role': 'assistant'}]