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': 'Hepatomegaly with liver pulsations indicates \nSelect and explain. \nA. TR, B. MR, C. Pulmonary hypeension, D. MS', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref Harrison 19 th ed pg 1548 AyatoSys pulsqtpuls of liver and marked hepatomegaly are characteristic features of tricuspid regurgitation.', 'role': 'assistant'}]