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: Pharmacology
[{'content': 'Beta2 adrenergic receptor stimulating drugs are used in: \nSelect and explain. \nA. Bronchial asthma, B. Cardiac asthma, C. Hypertension, D. Angina Pectrois', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]