Which of the following pulmonary function test results is characteristic of obstructive pulmonary disease?
A. FEV1 normal, FEV1/FVC ratio increased, FRC normal
B. FEV1 decreased, FEV1/FVC ratio decreased, FRC decreased
C. FEV1 normal, FEV1/FVC ratio increased, FRC increased
D. FEV1 increased, FEV1/FVC ratio unchanged, FRC increased
E. FEV1 decreased, FEV1/FVC ratio decreased, FRC increased

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