This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Radiation, Subject name: Social & Preventive Medicine
[{'content': 'Gamma rays are used for sterilization of: \nSelect and explain. \nA. Catheters, B. Canulas, C. Syringes, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) All of the aboveRef : K. Park 23rd ed. /127-128* Gamma radiation is used for sterilizing plastics, syringes, swabs, culture plates, catheter, rubber, oils, greases and metal foils.', 'role': 'assistant'}]