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: Radiology
[{'content': 'Miliary mottling seen in – a) TBb) Sarcoidosisc) Silicosisd) P. carinii pneumonia \nSelect and explain. \nA. abc, B. bc, C. acd, D. bcd', 'role': 'user'}, {'content': "Answer: A \nExplanation: Causes of Miliary mottling\xa0:-\n\nInfection\xa0:- Bacterial\xa0(TB,\xa0Brucellosis, Bronchopneumonia, Melioidosis), viral\xa0(varicella I\xa0chicken pox), Fungal\xa0(Histoplasmosis,\xa0Coccidiodomycosis, blastomycosis, cryptococcosis).\nCardiac\xa0:- Mitral stenosis,\xa0Pulmonary edema,\xa0multiple pulmonary infarct.\nPneumoconiosis\xa0:- Coal worker pneumoconiosis, silicosis.\nNeoplastic :-\xa0Lymphangitis carcinomatosis, alveolar cell Ca., lymphoma, leukemia,\xa0metastasis.\nAllergic\xa0:-\xa0Loeffler's syndrome,\xa0tropical eosinophilia.\nOthers\xa0:- IPF, RA,\xa0Sarcoidosis,\xa0Histocytosis-X, HMD, Haemosiderosis", 'role': 'assistant'}]