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': 'Nephrotoxic agent is \nSelect and explain. \nA. Methoxy flurone, B. Isoflurone, C. Halothane, D. N20', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Methoxy flurane', 'role': 'assistant'}]