This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen & Pelvis, Subject name: Anatomy
[{'content': "Batson's plexus of veins connects- \nSelect and explain. \nA. Prostatic and vertebral venous plexus, B. Gastric and hepatic veins, C. Upper and lower esophageal plexus, D. Superior amd inferior rectal veins", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Prostatic and vertebral venous plexus * 'There is valveless communication between prostatic plexus and vertebral venous plexus (Batson plexus) through which prostatic carcinoma can spread to vertebral column and skull'", 'role': 'assistant'}]