This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Microbiology
[{'content': 'Glutaraldehyde is used for all of the following EXCEPT: \nSelect and explain. \nA. Bronchoscope, B. Thermometer, C. Proctoscopes, D. Endoscopic tubes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref: Textbook of Diagnostic Microbiology, E-book, P 67* High level of disinfectant: 2% glutaraldehyde for 20 minutes for all instruments coming in contact with mucous membrane. Like bronchoscope, proctoscope, endoscopic tubes, etc.* Intermediate level of disinfectant: Phenol or alcohol is used to disinfect thermometer.* Low level of disinfectant: Lysol for floors and fabrics.', 'role': 'assistant'}]