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
Best method of sterilising disposable syringes is - 
Select and explain. 
A. Hot air oven, B. UV rays, C. Boiling, D. Gamma rays
D: Gamma rays
Answer: D: Gamma rays 
Explanation: Ans. is 'd' i.e., Gamma rays Ionizing irradiations are used for sterilization of single-use disposable items such as needles and syringes, latex catheters and surgical gloves. Ethylene oxide is also used for disposable plastic syringes.