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
To avoid pulpal irritation below a resistant metallic restoration, the minimum dentin thickness which should remain is: 
Select and explain. 
A. 0.5mm, B. 1.5mm, C. 1.0mm, D. 2.0mm
D: 2.0mm
Answer: D: 2.0mm 
Explanation: None