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 relaxant contra indicated in Renal faliure is \nSelect and explain. \nA. Gallamine, B. d-TC, C. Vecuronium, D. Atracurium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Gallamine', 'role': 'assistant'}]