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
Becks triad is seen in 
Select and explain. 
A. Constrictive pericarditis, B. Restrictive cardiomyopathy, C. Cardiac tamponade, D. HOCM
C: Cardiac tamponade
Answer: C: Cardiac tamponade 
Explanation: Components of Beck's Triad Hypotension with a Narrowed Pulse Pressure Jugular Venous Distention Muffled hea Sounds it is a pathognomic feature of cardiac tamponade Ref Harrison 20th edition pg 1546