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
Bacteria are populated most commonly on 
Select and explain. 
A. Buccal surface, B. Lingual surface, C. Interproximal surface, D. Occlusal surface
C: Interproximal surface
Answer: C: Interproximal surface 
Explanation: None