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: Pediatrics
Increased fetal Hb is seen in – 
Select and explain. 
A. Juvenile CML, B. Congenital red cell aplasia, C. Hereditary spherocytosis, D. AML
A: Juvenile CML
Answer: A: Juvenile CML 
Explanation: None