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: Ans. is 'b' i.e., Tension gangrene due to the accumulating secretions