This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peritoneum & GI Tract, Subject name: Anatomy
Which of the following is a retroperitoneal structure- 
Select and explain. 
A. Ileum, B. Jejunum, C. Ureter, D. Appendix
C: Ureter
Answer: C: Ureter 
Explanation: Ans. is 'c' i.e., UreterRelation to peritoneumOrganso Intraperitoneali) Complete intraperitonealii) Partially coveredStomach, jejunum, ileum, caceum, appendixAscending colon, descending colon, rectumo RetroperitonealDuodenum, pancreas, kidney, ureter, suprarenal glando SubperitonealUrinary bladder, prostate, seminal vesicle, cervix, vagina