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: Surgery
Osteotomes differ from chisels in that they are 
Select and explain. 
A. Sharp, B. Slightly curved, C. Non beveled, D. Bi-bevelled
D: Bi-bevelled
Answer: D: Bi-bevelled 
Explanation: None