If the pulmonary capillary partial pressure of a gasequilibrates with that in the alveolus before the blood leaves thecapillary (gas diffusing from the alveolar space to thecapillary):
a. its transfer is said to be perfusion limited
b. its transfer is said to be diffusion limited
c. increasing the cardiac output will not increase the amount ofof gas diffusing across the alveolar-capillary barrier
d. increasing the alveolar partial pressure of the gas will notincrease the amount of the gas diffusing across thealveolar-capillary barrier
e. None of the above