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
False about interstitial lung disease 
Select and explain. 
A. Decreased FVC, B. Decreased FEV1, C. Normal diffusion capacity, D. Presence of end inspiratory crackles
A: Decreased FVC
Answer: A: Decreased FVC 
Explanation: DLCO decreased in interstitial lung disease