input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 55-year-old man comes to the physician because of a 6-week history of tingling pain in the sole of his right foot when he raises it above chest level during exercises. He reports that he started exercising regularly 2 months ago and that his right calf cramps when he uses the incline feature on the treadmill, forcing him to take frequent breaks. The pain completely disappears after resting for a few minutes. He has an 8-year history of type 2 diabetes mellitus. He has smoked two packs of cigarettes daily for 34 years. His only medication is metformin. His pulse is 82/min, and blood pressure is 170/92 mm Hg. Straight leg raise test elicits pallor and tingling pain in the right foot. There is no pain in the back. His muscle strength is normal. Femoral pulses are palpable; right pedal pulses are absent. Which of the following is the most likely diagnosis?   (A) Femoropopliteal artery stenosis   (B) Acute thrombosis of right popliteal vein   (C) Lumbar spinal stenosis   (D) Aortoiliac artery stenosis "
output: ['(A) Femoropopliteal artery stenosis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Femoropopliteal artery stenosis  (B) Acute thrombosis of right popliteal vein  (C) Lumbar spinal stenosis  (D) Aortoiliac artery stenosis" <> possible answers', '  A 55-year-old man comes to the physician because of a 6-week history of tingling pain in the sole of his right foot when he raises it above chest level during exercises. He reports that he started exercising regularly 2 months ago and that his right calf cramps when he uses the incline feature on the treadmill, forcing him to take frequent breaks. The pain completely disappears after resting for a few minutes. He has an 8-year history of type 2 diabetes mellitus. He has smoked two packs of cigarettes daily for 34 years. His only medication is metformin. His pulse is 82/min, and blood pressure is 170/92 mm Hg. Straight leg raise test elicits pallor and tingling pain in the right foot. There is no pain in the back. His muscle strength is normal. Femoral pulses are palpable; right pedal pulses are absent. Which of the following is the most likely diagnosis? <> context']