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': 'Anaesthesia of choice in renal failure – \nSelect and explain. \nA. Methoxy flurane, B. Isoflurane, C. Enflurane, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Desflurane is the inhalational agent of choice in renal diseases. Isoflurane is an alternative.', 'role': 'assistant'}]