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': 'The intricately and prodigiously looped system of veins and arteries that lie on the surface of the epididymis is known as - \nSelect and explain. \nA. Choroid plexus, B. Tuberal plexus, C. Pampiniform plexus, D. Pectiniform septum', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]