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
Duroziez's sign is seen in 
Select and explain. 
A. Aoic regurgitation, B. Tricuspid regurgitation, C. Mitral stenosis, D. Carcinoid syndrome
A: Aoic regurgitation
Answer: A: Aoic regurgitation 
Explanation: Ref Harrison 19 th ed pg 1536 booming "pistol-shot" sound can be heard over the femoral aeries (Traube's sign), and a to-and-fro murmur (Duroziez's sign) is audible if the femoral aery is lightly compressed with a stethoscope.