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': 'Respiratory irritation is seen with \nSelect and explain. \nA. Ether, B. Halothane, C. Trichloroethlyene, D. Cyclopropane', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Trichloroethlyene', 'role': 'assistant'}]