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': 'Which of the following fluorinated agent does not produce fluoride to produce toxicity ? \nSelect and explain. \nA. Sevoflurane, B. Methoxyflurane, C. Desflurane, D. Enflurane', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Desflurane", 'role': 'assistant'}]