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': 'Bizygomatic width divided by 3.3 gives approximately \nSelect and explain. \nA. a)\tMesio-distal width of lower anterior teeth, B. b)\tMesio-distal width of upper anterior teeth, C. c)\tMesio-distal width of upper teeth from molar to molar, D. d)\tMesio-distal width of lower teeth from molar to molar', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]