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
Spherocytosis of BBC's is a common feature in - 
Select and explain. 
A. G-6P-D deficiency, B. Sickle cell anemia, C. CML, D. All
A: G-6P-D deficiency
Answer: A: G-6P-D deficiency 
Explanation: Ans. is 'a' i.e., G-6P-D deficiency