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': 'Following are major criteria of rheumatic fever, except- \nSelect and explain. \nA. Chorea, B. Ahritis, C. Carditis, D. Prolonged P-R interval', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Prolonged P-R interval", 'role': 'assistant'}]