Obstructive airways disease (COPD) is similar to restrictive lung disease (RLD) in that it reduces

A. True In COPD by air trapping and in RLD by reducing total lung volume.

B. True In COPD by slowing flow and in RLD by restricting volume.

C. False Only COPD which slows flow reduces it.

D. False It rises in COPD and falls in RLD.

E. False COPD typically causes marked reduction, RLD typically has little effect.