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: Surgery
[{'content': 'During renal transplantation the renal vein is connected to - \nSelect and explain. \nA. IVC, B. External Iliac vein, C. Internal iliac vein, D. Gonadal Vein', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. External Iliac veinThe renal aery of the new kidney, previously branching from the abdominal aoa in the donor, is often connected to the external iliac aery in the recipient.', 'role': 'assistant'}]