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': 'The aery of the ductus deferens arises from which of the following structures? \nSelect and explain. \nA. Aoa, B. Inferior epigastric, C. Inferior vesical, D. Pudendal', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The aery of the ductus deferens arises from the superior vesical aery, which in turn arises from the anterior branch of the internal iliac aery. It accompanies the ductus difference into the testis, where it anastomoses with the testicular aery.', 'role': 'assistant'}]