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: Medicine
[{'content': 'What is true regarding byssinosis \nSelect and explain. \nA. Dyspnea resolves after cessation of exposure, B. Similar to chronic bronchitis and emphysema, C. Present as mediastinal fibro, D. Eosinophils are prominent in BAL', 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer- A. Dyspnea resolves after cessation of exposureSymptoms of Byssinosis may improve on cessation of fuher exposure. Therefore symPtoms are worse at workPlace and improve away from workplace.Symptoms are similar to asthma (not emphysema or chronic bronchitis) --> Typical 'monday chest tightness'.Byssinosis does not usually cause mediastinal fibrosis'", 'role': 'assistant'}]