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
Carbon steel instruments and BURS are best sterilized by: 
Select and explain. 
A. Autoclave, B. Dry heat and chemiclave, C. Boiling water, D. 2% glutaraldehyde solution
B: Dry heat and chemiclave
Answer: B: Dry heat and chemiclave 
Explanation: Carbon steel instruments and burs do not rust, corrode, or lose their temper or cutting edges if they are well-sterilized by dry heat and chemiclave.