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
Gamma radiations are used for sterilizing - 
Select and explain. 
A. Syringes, B. Cystoscopes, C. Dressing aprons, D. Metal instruments
A: Syringes
Answer: A: Syringes 
Explanation: None