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': "The Browne's tube is used for? \nSelect and explain. \nA. Steam sterilization, B. Radiation, C. Chemical sterilization, D. Filtration", 'role': 'user'}, {'content': "Answer: A \nExplanation: A brownie's tube(green spot) is available for dry heat and is convenient for routine use. After prolonged sterilization, a green color is produced REF:Ananthanarayan and Panicker's Textbook of Microbiology 8th Edition pg no:32", 'role': 'assistant'}]