This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Microbiology
[{'content': 'The operating temperature in an ethylene oxide sterilization during a warm cycle is: \nSelect and explain. \nA. 49-63, B. 92-110, C. 20-35, D. 68-88', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e, 49-63(Ref: Ananthanarayan, 9th/e, p. 35, 36; Baveja, 4th/e, p. 38)EO sterilization cycles - Cold cycle at 37+-5 and Warm cycle 54+-5.", 'role': 'assistant'}]