This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'Duroziez sign seen in \nSelect and explain. \nA. AR, B. AS, C. MS, D. MR', 'role': 'user'}, {'content': "Answer: A \nExplanation: Duroziez's sign : Systolic and diastolic bruits while compressing femoral aery. A similar sign is Traube's sign. Reference : Davidson, 23rd page no : 524.", 'role': 'assistant'}]