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': "Beck's triad of cardiac tamponade includes all, Except: \nSelect and explain. \nA. Hypotension, B. Increased JVP, C. Muffled Hea sounds, D. Tachycardia", 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer is D (Tachycardia) The three principle features of Beck's triad are hypotension, soft or absent hea sounds and increased JVP Beck's Triad of Cardiac Tamponade HypotensioneQ Soft or absent Hea sounds (Silent Hea)Q Increased JVP (with a prominent x descent hut absent y descent)Q", 'role': 'assistant'}]