Answer
TV - tidal volume
ERV - expiratory reserve volume
VC - vital capacity
Work Step by Step
TV : Tidal volume is the volume of air that enters and leaves the person's lungs with each breath.
ERC : Expiratory reserve volume is the additional volume of air that a person exhales in addition to the tidal volume during forceful breath out.
VC : Vital capacity is the total volume of air that can participate in the gas exchange.