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
Commonest site from where pseudomyxoma peritonei arise : 
Select and explain. 
A. Ovary, B. Appendix, C. Pancreas, D. Stomach
B: Appendix
Answer: B: Appendix 
Explanation: None