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: Unknown
[{'content': 'Temperature used for Pasteurisation is: \nSelect and explain. \nA. 720C for 20 min, B. 630 C for 30 min, C. 1000C for 10 min, D. 940C for 20 min', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ref. Textbook of Microbiology and Immunology BY Parija. Page.\xa0 25\n\xa0\nPasteurisation\n\nPasteurization is not the same as sterilization.\nIts purpose is to reduce the bacterial population of a liquid such as milk and to destroy organisms that may cause spoilage and human disease.\nSpores are not affected by pasteurization. \nThe intent of pasteurization of milk is to eliminate pathogenic microbes. It also lowers microbial numbers, which prolongs milk's good quality under refrigeration.\nthe milk was exposed to a temperature of about 63C for 30 minutes, called the holding method. \nModern pasteurization - uses higher temperatures, at least 72C, but for only 15 seconds.", 'role': 'assistant'}]