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: Medicine
[{'content': 'All of the following are true about interstitial lung disease, Except: \nSelect and explain. \nA. Decreased FVC, B. Decreased FEV1, C. Decreased FEV 1 /FVC, D. Decreased Diffusion capacity', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Decreased FEVI/FVC): Interstial lung diseases produce a restrictive pattern on Pulmonary function testing and are characterized by a normal or elevated FEVIFVC ratio which is greater than 0.7 FEV and FVC are both reduced in interstitial lung disease but the decrease in FEVI is in propoion to decrease in FVC and hence the FEVI/FVC ratio is normal (or increased)', 'role': 'assistant'}]