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
Least width of attached gingiva is found on the facial
aspect of 
Select and explain. 
A. 1st premolar, B. 2nd premolar, C. Lateral incisor, D. Canine
A: 1st premolar
Answer: A: 1st premolar 
Explanation: None