This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Medicine
Splenectomy is indicated in: 
Select and explain. 
A. Sickle cell anaemia, B. Hereditary spherocytosis, C. Haemoglobin c disease, D. Hodgkins lymphoma
B: Hereditary spherocytosis
Answer: B: Hereditary spherocytosis 
Explanation: Ans: b