This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Transplantation, Subject name: Surgery
[{'content': "Most common indication for liver transplantation in children- \nSelect and explain. \nA. Biliary atresia, B. PBC, C. PSC, D. Caroli's disease", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e.. Biliary atresia", 'role': 'assistant'}]