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: Anatomy
[{'content': 'Accessory renal aeries are A/E \nSelect and explain. \nA. End aeries, B. Vascular anomaly, C. 2-4 in number, D. Very rare occurance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Very rare occurancePresence of accessory (supernumerary) renal aeries is the most common renal vascular anomalyQ. It is two times more common than supernumerary renal veins.', 'role': 'assistant'}]