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': 'Percentage of glutaraldehyde used - \nSelect and explain. \nA. 1%, B. 2%, C. 3%, D. 4%', 'role': 'user'}, {'content': "Answer: B \nExplanation: 2% glutaraldehyde is standard use in sterilization method Table 3.2 commonly used concentaion of disinfectant REF:Ananthanarayan & Panicker's Textbook of Microbiology 9th edition pg no:37", 'role': 'assistant'}]