This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Imaging of Interstitial Lung Disease, Subject name: Radiology
[{'content': 'Radiological feature of sarcoidosis - \nSelect and explain. \nA. Hilar lymphadenopathy, B. Hilar lymphadenopathy with parenchymal lung changes, C. No Hilar lymphadenopathy with parenchymal lung changes, D. All of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All of the above o The chest radiographic manifestations of sarcoidosis have been divided into five stages# Stage 0-Normal chest radiograph# Stage 1-Bilateral hilar lymphadenopathy# Stage 2-Bilateral hilar lymphadenopathy writh parenchymal disease.# Stage 3-Only parenchymal disease (no hilar lymphadenopathy)# Stage 4-Pulmonary fibrosis", 'role': 'assistant'}]