This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
[{'content': '40% formalin is used to sterilize? \nSelect and explain. \nA. Plastic syringes, B. All microbes + spores, C. Clothes, D. Stitches', 'role': 'user'}, {'content': "Answer: B \nExplanation: 40% formalin is used for the preservation of cadavers to prevent the putrefaction and also prevent the growth of bacteria. it destroys all microbes and its spores Ref Ananthanarayan & paniker's Textbook of Microbiology 9th edition pg no:34", 'role': 'assistant'}]