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': 'All are true about halothane except \nSelect and explain. \nA. Tachycardia, B. Hepatitis, C. Bronchodilatation, D. Uterine relaxation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Halothane causes bradycardia.', 'role': 'assistant'}]