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: Pathology
A 3-year-old child presented with progressive anaemia, jaundice & failure to thrive. 0/E: Pallor, splenomegaly are seen. Peripheral smear showed normoblasts and small round intensely stained red cells. The likely diagnosis is 
Select and explain. 
A. Hereditary spherocytosis, B. Thalassaemia, C. Sickle cell anaemia, D. Vitamin B12 deficiency anaemia
A: Hereditary spherocytosis
Answer: A: Hereditary spherocytosis 
Explanation: None