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: Medicine
[{'content': 'All except in brown sequard syndrome - \nSelect and explain. \nA. Ipsilateral pyramidal tract features, B. C/L dorsal column, C. C/L spinothalmic, D. Ipsilateral planter extensor', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]