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: Pediatrics
[{'content': 'Post hepatic Portal Hypertension is caused by \nSelect and explain. \nA. Portal vein thrombosis, B. Congenital hepatic fibrosis, C. Budd-Chiari syndrome, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Post-sinusoidal cause of Poratl hypertension\nBudd-Chiari syndrome\nVeno occlusive disease', 'role': 'assistant'}]