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
True about inferior vena cava: 
Select and explain. 
A. Passes through diaphragm at level of Du veebra, B. Rt. Suprarenal aery directly drains to it., C. It lies anterior to the renal vein., D. It forms the posterior wall of the epiploic foramen.
D: It forms the posterior wall of the epiploic foramen.
Answer: D: It forms the posterior wall of the epiploic foramen. 
Explanation: D. i.e. It forms posterior wall of epiploic foramenRight free margin of lesser omentum containing poal vein, hepatic aery & bile duct are situated anteriorly; and Suprarenal gland (right), Inferior vena cava, & T12 veebra ("SIT" structures) are related posteriorly to Epiploic foramen