What is the volume of air that reaches the pulmonary alveoli and undergoes hematosis in each respiratory cycle? I - The volume of air that reaches...

What is the volume of air that reaches the pulmonary alveoli and undergoes hematosis in each respiratory cycle?

I - The volume of air that reaches the pulmonary alveoli and undergoes hematosis in each respiratory cycle is approximately 500 ml.
II - Of the 500 ml of air that reach the pulmonary alveoli and undergo hematosis in each respiratory cycle, 150 ml remain in the airways and do not undergo gas exchange, forming the so-called dead space.
III - The residual volume is the air that remains inside the lungs even after a forced expiration and corresponds to approximately 1200 ml of air.
IV - The residual volume is important to keep the alveoli constantly open and prevent their collapse.
V - The surfactant is a liquid in the alveolar wall that decreases the surface tension of the alveolar walls and also helps to prevent the alveoli from sticking to their walls.
a) Only statements I, II and III are correct.
b) Only statements II, III and IV are correct.
c) Only statements I, III and V are correct.
d) Only statements II, IV and V are correct.
e) All statements are correct.