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': 'In polyarteritis nodosa, aneurysms are seen in all,EXCEPT - \nSelect and explain. \nA. Kidney, B. Lung, C. Liver, D. Pancreas', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]