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
Bizygomatic width divided by 3.3 gives approximately 
Select and explain. 
A. a)	Mesio-distal width of lower anterior teeth, B. b)	Mesio-distal width of upper anterior teeth, C. c)	Mesio-distal width of upper teeth from molar to molar, D. d)	Mesio-distal width of lower teeth from molar to molar
B: b)	Mesio-distal width of upper anterior teeth
Answer: B: b)	Mesio-distal width of upper anterior teeth 
Explanation: None