This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'About emphysema True is? \nSelect and explain. \nA. Frequently associated with obstructive sleep apnea, B. Destruction and enlargement of the lung alveoli, C. Centriacinar more prominent in lower lobes, D. Not a component of COPD', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Destruction and enlargement of the lung alveoli # EMPHYSEMA is characterized by destruction and enlargement of lung alveoli.> Included in COPD. It includes centriacinar & panacinar types.> Centriacinar is most prominent in upper lobe & superior segments of lower lobes.', 'role': 'assistant'}]