This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal Tubular And Obstructive Disorders, Subject name: Pediatrics
[{'content': 'The treatment of choice for primary grade V VUR involving both kidneys in a 6 month old boy is: \nSelect and explain. \nA. Antibiotic prophylaxis, B. Ureteric implantation, C. Cystoscopy followed by subureteric injection of Teflon, D. Bilateral ureterostomies', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Treatment of VUR: 1. Continuous antibiotic prophylaxis: Age < 1 year Grade 3-5 VUR with h/o febrile UTI Associated bowel bladder dysfunction 2. Surgery- break through UTI despite on continuous antibiotic prophylaxis', 'role': 'assistant'}]