This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of Health and Disease, Subject name: Social & Preventive Medicine
[{'content': 'Pasteurization of milk is a type of - \nSelect and explain. \nA. Primary prevention, B. Secondary prevention, C. tertiary prevention, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Pimary prevention * Pasteurization of milk is done to prevent bacterial infection - primary prevention", 'role': 'assistant'}]