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': 'α1- Antitrypsin deficiency is associated with - \nSelect and explain. \nA. Centriaciner emphysema, B. Panaciner-emphysema, C. Irregular emphysema, D. Paraseptal-emphysema', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]