This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Most common cause of peritonitis in adult male is 
Select and explain. 
A. Duodenal ulcer perforation, B. Abdominal tuberculosis, C. Enteric perforation, D. Perforated appendix
D: Perforated appendix
Answer: D: Perforated appendix 
Explanation: MC cause of peritonitis in adult male: Peptic ulcer perforation * The most common cause is a perforation of the abdominal viscus-most commonly, a perforated ulcer, may occur as a result of perforation of any pa of the bowel; other causes include a benign ulcer, a tumor, or trauma.* MC cause of peritonitis in adult male: Peptic ulcer perforation