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': 'Muscle pain after anaesthesia is caused by: \nSelect and explain. \nA. Vecuronium, B. D-tubocurare, C. Suxamethonium, D. All', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Suxamethonium', 'role': 'assistant'}]