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
Apt presents with engorged neck veins, BP 80/50 and pulse rate of 100 following blunt trauma to the chest : Diagnosis is - 
Select and explain. 
A. Pneumothorax, B. Right ventricular failure, C. Cardiac tamponade, D. Hemothorax
C: Cardiac tamponade
Answer: C: Cardiac tamponade 
Explanation: None