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
The frequent mechanism in perforation of appendix is- 
Select and explain. 
A. Impacted faecolith, B. Tension gangrene due to the accumulating secretions, C. Necrosis of lymphoid patch, D. Retrocaecal function
B: Tension gangrene due to the accumulating secretions
Answer: B: Tension gangrene due to the accumulating secretions 
Explanation: None