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
The orthodontic diagnosis focuses on 
Select and explain. 
A. Full smile, B. Emotional smile, C. Social smile, D. Gummy smile only
C: Social smile
Answer: C: Social smile 
Explanation: There are two types of smiles: the posed or social smile, and the emotional smile. 
The social smile is reproducible, and is the one that is presented to the world routinely. 
The emotional smile varies with the emotion being displayed. 
The social smile is the focus of orthodontic diagnosis.
Contemporary orthodontics, Proffit, 4th edition page 186