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: Medicine
[{'content': 'To prevent exercise induced bronchial asthma drug used is - \nSelect and explain. \nA. Sodium chromoglycate, B. Ipratropium bromide, C. Terbutaline, D. Epinephrine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]