This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Which of the following is a major criteria for diagnosis of Rheumatic fever (RF) according to modified Jones criteria ? \nSelect and explain. \nA. ASO titre, B. Past history of Rheumatic fever, C. Fever, D. Subcutaneous nodules', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Jones major criteria of RHD include card it is,chorea,ahritis, subcutaneous nodule, erythema marginatum. Ref : Ghai essential of pediatrics, eighth edition p.no:436, Davidson principal and practice of medicine, 21st edition, p.no:613', 'role': 'assistant'}]