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You are about to dive into the pool and you take a deep breath. What is the volume of air called and what does it measure?

a. Inspiratory reserve volume; additional air taken into the lungs above the tidal volume
b. Expiratory reserve volume; additional air taken out the lungs above the tidal volume
c. Residual volume; additional air taken into the lungs above the tidal volume
d. Tidal volume; air taken in and taken out during quiet breathing