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: Pediatrics
[{'content': 'Not a criteria of J.R.A. (Juvenile Rheumatoid Ahritis) - \nSelect and explain. \nA. Age > 16 yrs, B. Ahritis > 3 wks, C. Ahritis > 6 months, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'a' i.e., Age > 16 yrs; 'b' i.e., Ahritis > 3 wks; c' i.e., Ahritis > 6 months", 'role': 'assistant'}]