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: Unknown
[{'content': 'Following condition may occur in all of the following except \nSelect and explain. \nA. Infective endocarditis, B. Sickle cell disease, C. Celiac disease, D. Thrombocythemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Splenic atrophy—sickle-cell disease due to infarction, celiac disease, dermatitis herpetiformis, ulcerative colitis, essential thrombocythemia.\nIn infective endocarditis—splenomegaly (40%).', 'role': 'assistant'}]