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
[{'content': 'A 20 yrs adult presents with severe hypoplastic anemia. What is most effective treatment : \nSelect and explain. \nA. a-interferon, B. IL-2, C. ATG therapy, D. Bone marrow transplantation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer is D (Bone marrow transplantation) `Bone marrow transplantation is the best therapy for the young patient with a fully histocompatible sibling donor.' The curative treatment for young (<20 year-old) patients with severe idiopathic aplastic anemia is allogenic bone marrow transplantation if there is an available donor. Those with a compatible sibling donor should proceed to transplantation as soon as possible.", 'role': 'assistant'}]