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: Biochemistry
The best technique to isolate DNA from enamel and dentin is 
Select and explain. 
A. Cryogenic grinding, B. Crushing, C. Horizontal section, D. Conventional endodontic process
A: Cryogenic grinding
Answer: A: Cryogenic grinding 
Explanation: None