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 a class II mesio occlusal inlay gingival bevel is at 
Select and explain. 
A. 30-40, B. 45-60, C. 60-80, D. no fixed angulation
A: 30-40
Answer: A: 30-40 
Explanation: None