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': 'Cold sterilization is done by: September 2007 \nSelect and explain. \nA. Steam, B. Inionizing radiation, C. Infra red, D. UV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Inionizing radiation Cold sterilization is a process in which sterilization is carry out at low temperature with the help of chemicals, radiations, membranes and all other means excluding high temperature. Ionizing radiation such as X-rays, gamma rays and cosmic rays, cause no appreciable increase in temperature in this method, it is referred as cold sterilization', 'role': 'assistant'}]