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': 'Bronchospasm is not caused by \nSelect and explain. \nA. Regurgitation, B. Aspiration, C. Intubation, D. Halothane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Halothane', 'role': 'assistant'}]