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: Dental
[{'content': 'The average leeway space available in each half of mandible is \nSelect and explain. \nA. 3.8 mm, B. 1.7 mm, C. 2.4 mm, D. 0.9 mm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]