This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle Relaxant, Subject name: Anaesthesia
[{'content': 'Nephrotoxic anaesthetic agent is : \nSelect and explain. \nA. Halothane, B. Isoflurane, C. Methoxyflurane, D. Nitrous Oxide', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' Methoxyflurane Methoxyflurane has the highest fluoride content so it is highly NephrotoxicThere is high output renal failure and high chances of Oxalate stone.", 'role': 'assistant'}]