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': 'Culture media are sterilized by - \nSelect and explain. \nA. Autoclaving, B. Beta- radiation, C. Hot air oven, D. All', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Autoclaving", 'role': 'assistant'}]