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
Best ﬁnish line for posterior metal ceramic crown is: 
Select and explain. 
A. Chamfer with bevel, B. Heavy chamfer, C. Shoulder, D. Shoulder with bevel
D: Shoulder with bevel
Answer: D: Shoulder with bevel 
Explanation: Key Concept: