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
Increase in alpha-fetoprotein is seen in- 
Select and explain. 
A. Hepatoblastoma, B. Neuroblastoma, C. Thymoma, D. Angiosarcoma
A: Hepatoblastoma
Answer: A: Hepatoblastoma 
Explanation: None