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: Anatomy
The blood vessel related to the paraduodenal fossa is - 
Select and explain. 
A. Gonadal vein, B. Superior mesenteric artery, C. Portal vein, D. Inferior mesenteric vein
D: Inferior mesenteric vein
Answer: D: Inferior mesenteric vein 
Explanation: None