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': 'Endoscope tube is sterilized by? \nSelect and explain. \nA. Glutaraldehyde, B. Formalin, C. Autoclaving, D. Boiling', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Glutaraldehyde 2% Glutaraldehyde (cidex) is most often used for equipment such as endoscope that cannot be sterilized or disinfected by heat.", 'role': 'assistant'}]