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': 'Increase in alpha-fetoprotein is seen in : \nSelect and explain. \nA. Hepatoblastoma, B. Neuroblastoma, C. Thymoma, D. Angiosarcoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Hepatoblastoma): Hepatoblastoma is a malignant liver tumor of infancy i.e. typically associated with very high serum AFP levels. The lesions are usually solitary, may be resectable and have a better.five year survival than that of HCC.', 'role': 'assistant'}]