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: Microbiology
Glassware and syringes are sterilized by: 
Select and explain. 
A. Autoclave, B. Hot air oven, C. Ethylene oxide, D. Irradiation
B: Hot air oven
Answer: B: Hot air oven 
Explanation: Key Points:-
Hot-air oven is used in laboratories and clinics for heat-resistant items that are not sterilized well by moist heat. They are used for sterilization of:

Glasswares (syringes, Petri dishes, flasks, pipettes, test tubes, etc.).
Surgical instruments (scalpels, scissors, forceps, etc.).
Chemicals (liquid paraffin, sulfonamide powders, etc.); and
Oils that are not penetrated well by steam used in moist heat sterilization.

Parija SC. Textbook of Microbiology & Immunology. Elsevier Health Sciences; 2014. Page: 27