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 right adrenal vein drains into - 
Select and explain. 
A. Right renal vein, B. Inferior vena cava, C. Second right lumbar vein, D. Third right lumbar vein
B: Inferior vena cava
Answer: B: Inferior vena cava 
Explanation: Right suprarenal (adrenal) vein drains into IVC and left one into left renal vein.