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: Social & Preventive Medicine
[{'content': 'Under the Prevention of Food Adulteration (PEA) Act, the expected level of iodine in iodized salt at production level is NOT less than - \nSelect and explain. \nA. 30 ppm, B. 25 ppm, C. 20 ppm, D. 15 ppm', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 30 ppm", 'role': 'assistant'}]