This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and Health, Subject name: Social & Preventive Medicine
[{'content': 'Hot air oven can be used to sterilize all EXCEPT: \nSelect and explain. \nA. Scalpels, B. Glassware, C. Plastic Syringes, D. Dressings', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Plastic SyringesRef: K. Park 23rd ed. /127-28HOTAIR OVEN* Holding period of 160 C x 1 hour* Used for forceps, glasswares, scissors, scalpels, glass syringes, swabs and few pharmaceutical products like liquid paraffin, fats, grease.', 'role': 'assistant'}]