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: Medicine
In Budd Chiari syndrome, the site of venous thrombosis is : 
Select and explain. 
A. Infrahepatic inferior vena cava, B. Infrarenal inferior vena cava, C. Hepatic veins, D. Poal veins
C: Hepatic veins
Answer: C: Hepatic veins 
Explanation: Answer is C (Hepatic vein): Budd chiari syndrome is characterized by post sinusoidal obstruction outside the liver at the level of hepatic veins