This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
[{'content': 'Posterior dorsal columns transmit \nSelect and explain. \nA. Fine touch, vibration, B. Pain, temperature, C. Crude touch, D. Unconscious kinesthetic impulses', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Fine touch, vibration', 'role': 'assistant'}]