This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poal Hypeension, Subject name: Surgery
[{'content': 'Which of the following is the most common cause of pre-sinusoidal intrahepatic poal hypeension? \nSelect and explain. \nA. Cirrhosis, B. Schistosomiasis, C. Sarcoidosis, D. Graft-versus-host disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: MC cause of intrahepatic presinusoidal poal hypeension - Schistosomiasis Mc cause of Sinusoidal poal hypeension - Cirrhosis', 'role': 'assistant'}]