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
Most common defect in hereditary spherocytos is in ? 
Select and explain. 
A. Spectrin, B. Ankyrin, C. Band 3, D. Band 4.2
B: Ankyrin
Answer: B: Ankyrin 
Explanation: Ans. is 'b' i.e., Ankyrin