This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
[{'content': 'Most common complication of Giant cell aeritis \nSelect and explain. \nA. Stroke, B. MI, C. Blindness, D. Renal failure', 'role': 'user'}, {'content': 'Answer: C \nExplanation: GIANT CELL AERITIS (TEMPORAL AERITIS) Superficial temporal, veebral & major aoic arch branches may be involved. Ischemic symptoms are common, including claudication of facial or extremity muscles & retinal ischemia Blindness, usually irreversible, is a dreaded complicated.', 'role': 'assistant'}]