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: Forensic Medicine
[{'content': 'In autopsy, spinal cord is opened through which approach: AIIMS 11 \nSelect and explain. \nA. Anterior, B. Posterior, C. Lateral, D. Anterolateral', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Posterior', 'role': 'assistant'}]