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
For gold inlays gingival margin finish line should be 
Select and explain. 
A. Shoulder preparation, B. Chamfer preparation, C. Bevel, D. Knife edge
C: Bevel
Answer: C: Bevel 
Explanation: None