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': 'Reflux into grossly dilated ureter belongs to which grade of Vericoureteric Reflux ? \nSelect and explain. \nA. Grade II, B. Grade III, C. Grade IV, D. Grade V', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Grading of VUR based on radiocontrast MCO :\n\n\n\nGrade\nDescription\n\n\nI\nReflux into non - dilated distal ureter\n\n\nII\nReflux into upper collecting system in non\xa0dilated ureter\n\n\nIII\nReflux into dilated ureter\n\n\nIV\nReflux into grossly\xa0dilated ureter\n\n\nV\nmassive Reflux with ureteral dilation , tortuous effaced calyces', 'role': 'assistant'}]