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: Medicine
[{'content': 'Most common cause of Auto splenectomy \nSelect and explain. \nA. Sickle cell anemia, B. SLE, C. Pneumococcal sepsis, D. Thalassemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A,b,C\xa0are causes of Auto splenectomy m/c cause is sickle cell anemia.', 'role': 'assistant'}]