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
Proxa brushes are recommended to be used in 
Select and explain. 
A. Type I embrasure, B. Type II embrasure, C. Type III embrasure, D. Any of the above
B: Type II embrasure
Answer: B: Type II embrasure 
Explanation: None