This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
A pt. died after a blunt trauma to chest Most common cause of death in blunt trauma to chest is - 
Select and explain. 
A. Pneumothorax, B. Tracheo bronchial rupture, C. Pulmonary laceration, D. Oesophageal rupture
B: Tracheo bronchial rupture
Answer: B: Tracheo bronchial rupture 
Explanation: Option B is more common cause of death in blunt trauma of chest when compared to the other complications seen in chest trauma