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': 'All are methods of sterilization by dry heat except- \nSelect and explain. \nA. Flaming, B. Incineration, C. Hot air oven, D. Autoclaving', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]