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: Unknown
[{'content': 'All form the boundaries of the ovarian fossa, except - \nSelect and explain. \nA. Ureter, B. Internal pudendal artery, C. Obliterated umbilical artery, D. Internal iliac artery', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Internal pudendal arteryo Each ovary lies in ovarian fossa and the lateral pelvic wall which is boundedAnteriorly: Obliterated umbilical arteryPosteriorly: Ureter and internal iliac artery", 'role': 'assistant'}]