This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Occupational Health, Subject name: Social & Preventive Medicine
[{'content': 'Pneumoconiosis most likely to occur if a person is exposed to particle size range of: \nSelect and explain. \nA. 0.5 - 3 im, B. 3-5 im, C. 5-10 im, D. 10-15 im', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: a (0.5-3) Ref: Park, 19th ed, p. 661Dust within the range of 0.5- 3 micrometer after a variable period of exposure, produces a type of lung disease known as pneumoconiosis.Important dust diseases include:SilicosisBagassosisAnthracosisAsbestosisByssinosisFarmers lung', 'role': 'assistant'}]