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': 'Lt ureter is related to: \nSelect and explain. \nA. Quadratus Lumborm, B. Lt gonadal vessels, C. Superior mesenteric vein, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: . B. i.e. Lt. gonadal vessels', 'role': 'assistant'}]