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: Anaesthesia
[{'content': 'Stage of analgesia in anaesthesia is ? \nSelect and explain. \nA. Stage-1, B. Stage-2, C. Stage-3, D. Stage-4', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Stage-1", 'role': 'assistant'}]