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 cause of Heridetary Spherocytosis is: 
Select and explain. 
A. Spectrin, B. Glycophyrin, C. Ankyrin, D. Band 4
C: Ankyrin
Answer: C: Ankyrin 
Explanation: Ankyrin