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: Physiology
Megaloblasts are precursors of: 
Select and explain. 
A. Megakaryocytes, B. Normoblasts, C. Myelocytes, D. Macrocytes
B: Normoblasts
Answer: B: Normoblasts 
Explanation: None