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': 'Laudanosine is metabolic end product of \nSelect and explain. \nA. Mivacurium, B. Doxacurium, C. Rocuronium, D. Atracurium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Laudanosine is metabolic end product of atracurium.', 'role': 'assistant'}]