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': "Muller's sign is seen in? \nSelect and explain. \nA. Mitral stenosis, B. Aoic stenosis, C. Mitral regurguitation, D. Aoic regurgitation", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Peripheral signs of AR - Muller&;s sign: Pulsations of the uvula. Collapsing pulse: Rapid upstroke, rapid down stroke and high volume. de Musset&;s sign: head nodding with pulse. Quincke&;s sign: Capillary pulsation in nail bed. Duroziez&;s sign: Femoral bruit. Hill&;s sign: popliteal cuff systolic pressure exceeding brachial cuff systolic BP more than 20mmHg. Lighthouse sign : Capillary pulsation on forehead. Rosenbach&;s sign: pulsatile liver. Gerhardt&;s sign: pulsatile spleen. Ref: Medicine, George Mathew, 4th edition, Pg No: 487', 'role': 'assistant'}]