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': 'What is the force generated by lip musculature on the upper incisor teeth at rest? \nSelect and explain. \nA. 15-20 g/square cm, B. 20-25 g/square cm, C. 10-15 g/square cm, D. 30-35 g/square cm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The forces generated by lip musculature on the upper incisor teeth at rest is 20-25 g/square cm.', 'role': 'assistant'}]