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': 'Prostatic venous plexus is related with all, Except \nSelect and explain. \nA. Superior rectal vein, B. Superior rectal vein, C. Superior rectal vein, D. Deep dorsal vein of penis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Superior rectal vein', 'role': 'assistant'}]