This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Cystoscopes and bronchoscopes are sterilized by \nSelect and explain. \nA. Orthophthaldehyde, B. Glutaraldehyde, C. Formaldehyde, D. Isopropylalchol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Both orthophthaldehyde and Glutaraldehyde are used\nBut Orthophthaldehyde > Glutaraldehyde.', 'role': 'assistant'}]