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: Pathology
[{'content': 'Which of the following is associated with hypersensitivity pneumonitis - \nSelect and explain. \nA. Silicosis, B. Asbestosis, C. Byssinosis, D. Berylliosis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Hypersensitivity pneumonitis \n\nHypersensitivity pneumonitis describes a spectrum of immunologically mediated*, predominantly interstitial lung disorders caused by intense, often prolonged exposure to inhaled organic dust and related occupational antigens.\nEtiology: Inhalation of organic dust, most commonly spores of thermophilic fungi*.\nDepending on the occupation or exposure of specific antigen numerous names have been given to hypersensitivity pneumonitis.\n\n\n\nFarmer's lung\xa0→\xa0Thermophilic actinomycetes on mouldy hay or grain dust.\n\n\nPigeon breeder's lung →\xa0Proteins from serum, excreta or feathers of the birds.\n\n\nAir conditioner lung (or Humidifier lung)\xa0→ Thermophilic bacteria in heated water reservoirs.\n\n\nBagassosis\xa0→\xa0Sugarcane bagasse\n\n\nByssinosis\xa0→\xa0Cotton dust\n\n\nMaple-bark disease\xa0→\xa0Mouldy maple bark\n\n\nMushroom-worker's lung\xa0→\xa0Mushroom compost dust\n\n\nSilo-filler's disease\xa0→ Toxic fumes of NO & N2O due to fermentation of silage", 'role': 'assistant'}]