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
The best treatment for class V lesion on a tooth along with extensive class II caries is: 
Select and explain. 
A. Restoration of class II followed by class V, B. Cast gold restoration, C. A full  crown restoration, D. Restoration of class V followed by class II
C: A full  crown restoration
Answer: C: A full  crown restoration 
Explanation: With class V lesion and extensive class II cavity in the same tooth  the  remaining  enamel  surface  with  the  supported healthy dentin will be much less hence  in such situation full crown restoration will be long lasting.