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
The operating temperature in an ethylene oxide sterilization during warm cycle is 
Select and explain. 
A. 20-35 degree c, B. 49-63 degree c, C. 68-88 degree c, D. 92-110 degree c
B: 49-63 degree c
Answer: B: 49-63 degree c 
Explanation: None