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: Surgery
[{'content': 'Posterior mandible resorbs at a rate approximately\ntimes faster than the anterior mandible \nSelect and explain. \nA. 2 times, B. 4 times, C. 6 times, D. 8 times', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]