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
Long bevel envolves: 
Select and explain. 
A. Entire enamel., B. Entire enamel and dentine., C. Entire enamel and half dentin., D. Usually not recommended.
C: Entire enamel and half dentin.
Answer: C: Entire enamel and half dentin. 
Explanation: None