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': "In `Hotair oven' for holding period of one hour, temperature required is - \nSelect and explain. \nA. 100degC, B. 120degC, C. 140degC, D. 160degC", 'role': 'user'}, {'content': 'Answer: D \nExplanation: 160degC', 'role': 'assistant'}]