This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'Initially renal aeries are branches of \nSelect and explain. \nA. Aoa, B. Common iliac aery, C. External iliac aery, D. Internal pudendal aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Initially the renal aeries are branches of the common iliac aeries, then the distal end of aoa and when kidneys are located at a higher level, they receive new branches from the aoa. Normally the caudal renal vessels undergo involution and disappear. Ref - pubmed.com', 'role': 'assistant'}]