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': 'Pathological features of acute rheumatic fever include following except? \nSelect and explain. \nA. Aschoff bodies, B. Pancarditis, C. MacCallum patch, D. None of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., None of the above", 'role': 'assistant'}]