This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anaesthesia
[{'content': 'Which among the following is a depolarizing muscle relaxant \nSelect and explain. \nA. Decamethonium, B. D tubocurarine, C. Doxacurium, D. Atracurium', 'role': 'user'}, {'content': "Answer: A \nExplanation: (Refer: Morgan and Mikhail's Clinical Anaesthesiology, 5th edition, pg no.219)", 'role': 'assistant'}]