This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: GIT 1, Subject name: Anatomy
[{'content': 'Accessory renal aery:- \nSelect and explain. \nA. Remnant of degenerated mesonephric aery, B. May encircle around the kidney, C. May lead to hydronephrosis, D. All of above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The accessory renal aery is the precocious origin of a segmental aery which sometimes arises from the aoa and supplies upper or lower pole of the kidney. The accessory renal aery is the remnant of the degenerated mesonephric aery. The aery for the lower pole usually passes behind the pelvis of ureter and may cause obstruction to urine flow producing hydronephrosis.', 'role': 'assistant'}]