This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'False about interstitial lung disease \nSelect and explain. \nA. Decreased FVC, B. Decreased FEV1, C. Normal diffusion capacity, D. Presence of end inspiratory crackles', 'role': 'user'}, {'content': 'Answer: A \nExplanation: DLCO decreased in interstitial lung disease', 'role': 'assistant'}]