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: Physiology
[{'content': 'Posterior column lesion which of the following is not affected: \nSelect and explain. \nA. Vibration, B. Temperature, C. Fine touch, D. Position sense', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Temperature', 'role': 'assistant'}]