This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
[{'content': 'The lung pathology occurring in persons working in cotton- wool industries is \nSelect and explain. \nA. Asthma like features, B. Hypersensitivity pnemonitis, C. Lung Ca, D. Chronic bronchitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Asthma like features(Ref: Robbins 9th 689)In 10-25% cases, disease may be progressive, with chest tightness recurring or persisting throughout the workweek.After >10 years of exposure, workers with recurrent symptoms are more likely to have an obstructive pattern on pulmonary function testing.', 'role': 'assistant'}]