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
In the conventional finger rest, the finger rest is established on the 
Select and explain. 
A. Other side of the same arch, B. Tooth surface immediately adjacent to the working area, C. Opposing arch, D. Index finger or thumb of the non operating hand
B: Tooth surface immediately adjacent to the working area
Answer: B: Tooth surface immediately adjacent to the working area 
Explanation: None