This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': "Kussmaul's sign is seen in all except \nSelect and explain. \nA. Constrictive Pericarditis, B. Restrictive Cardiomyopathy, C. Tricuspid stenosis, D. Cardiac tamponade", 'role': 'user'}, {'content': "Answer: D \nExplanation: Kussmaul's sign is absent in Cardiac tamponade.", 'role': 'assistant'}]