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
An incipient carious lesion on an inter proximal surface
is usually located 
Select and explain. 
A. At the contact area, B. Facial to contact area, C. Gingival to contact area, D. Lingual to contact area
C: Gingival to contact area
Answer: C: Gingival to contact area 
Explanation: None