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
The disposable plastic syringes are best sterilized by- 
Select and explain. 
A. Formaldehyde, B. Ethylene oxide, C. Hexachloride, D. UV radiation
B: Ethylene oxide
Answer: B: Ethylene oxide 
Explanation: None