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
Percentage of glutaraldehyde used - 
Select and explain. 
A. 1%, B. 2%, C. 3%, D. 4%
B: 2%
Answer: B: 2% 
Explanation: 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