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
[{'content': 'Which is the most common cause of spherocytosis \nSelect and explain. \nA. Hereditary spherocytosis, B. GCPD deficiency, C. AIHA, D. PNH', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Auto immune hemolytic Anemia (AIHA) is the most common cause of spherocytosis.', 'role': 'assistant'}]