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: Surgery
Sitaram a 40-year old man, met with an accident and comes to emergency department with engorged neck veins, pallor, rapid pulse and chest pain Diagnosis is - 
Select and explain. 
A. Pulmonary Laceration, B. Cardiac tamponade, C. Hemothorax, D. Splenic rupture
B: Cardiac tamponade
Answer: B: Cardiac tamponade 
Explanation: None