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 anaesthetics corrodes metal in vaporizers and breathing systems ? \nSelect and explain. \nA. Sevoflurane, B. Enflurane, C. Isoflurane, D. Halothane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In the presence of moisture halothane attacks metals (tin, brass and aluminum) in vaporisers and circuits.', 'role': 'assistant'}]