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
Bonded retainers are popular in which area of dentition? 
Select and explain. 
A. Lower anteriors, B. Lower posteriors, C. Upper anteriors, D. Upper posteriors
A: Lower anteriors
Answer: A: Lower anteriors 
Explanation: None