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: Pathology
Pseudomyxoma peritonei is seen with - 
Select and explain. 
A. Mucinous cystadenocarcinoma ovary, B. Carcinoid appendix, C. Endometrial carcinoma, D. Ileal carcinoid
A: Mucinous cystadenocarcinoma ovary
Answer: A: Mucinous cystadenocarcinoma ovary 
Explanation: None