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
One of the following dental notations is known as universal notation 
Select and explain. 
A. Zsigmondy notation, B. Cunningham notation, C. Navy notation, D. Palmar notation
B: Cunningham notation
Answer: B: Cunningham notation 
Explanation: None