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': 'True about morphology ofAsthma -a) Charcot- leyden crystalb) Irreversiblec) Involve larger airwaysd) Intermittent asthma is better responsive to bronchodilator therapye) Hypersensitive lung \nSelect and explain. \nA. acd, B. ade, C. abd, D. ad', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]