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': 'An elderly male presented with uncontrolled hypertension and sign of renal failure on biopsy shows medial thickening of arteries with onion skin appearance is diagnostic of? \nSelect and explain. \nA. Thrombo-angioobliterans, B. Arteriosclerosis obliterans, C. Hyperplastic arteriosclerosis, D. Hyaline arteriosclerosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]