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': 'All of the following are major criteria inthe diagnosis of Acute Rheumatic Fever, except - \nSelect and explain. \nA. Prolonged PR interval, B. Subcutaneous Nodules, C. Chorea, D. Carditis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans-A Prolonged PR interval', 'role': 'assistant'}]