The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In a 60 yr old hypertensive male with renal failure, renal biopsy shows onion skin appearance. The most likely diagnosis is   (A) Hyaline arteriosclerosis   (B) Thrombophlebitis obliterans   (C) Hyperplastic arteriosclerosis   (D) Arteriosclerosis obliterans
['(C) Hyperplastic arteriosclerosis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Hyaline arteriosclerosis \n (B) Thrombophlebitis obliterans \n (C) Hyperplastic arteriosclerosis \n (D) Arteriosclerosis obliterans <> possible answers', '  In a 60 yr old hypertensive male with renal failure, renal biopsy shows onion skin appearance. The most likely diagnosis is <> context@']