<prompt> FEV1 FEVC ratio is decreased in all, exceptBronchiectasisEmphysemaChronic bronchitisTuberculosis  <response>: ParameterObstructive lung diseaseRestrictive lung diseaseTotal lung capacityNormal to increaseDecreaseResidual volumeIncreaseDecreaseVital capacityDecreaseDecreaseFEV1 FVC FEV1DecreaseNormal to increaseFEF 25-75 Forced expiratory flow rateDecrease NormalDiffusion capacityNormal in emphysemadecreasedRefer: Harrisons Principles of Internal Medicine, 18thedition, pg no: 2163-2165 