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': 'Glassware is sterilized in Hot air oven at - \nSelect and explain. \nA. 160degC for 1 hour, B. 170degC for 1 hour, C. 180degC for 1 hour, D. 190degC for 1 hour', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 160degC for 1 hour", 'role': 'assistant'}]