NEET 2024 Zoology Question 155 Solution

Inspiratory Capacity ($IC$) is the total volume of air a person can inspire after a normal expiration, comprising Tidal Volume and Inspiratory Reserve Volume ($IC = TV + IRV$) (D -> III). Expiratory Capacity ($EC$) is the total volume of air a person can expire after a normal inspiration, comprising Tidal Volume and Expiratory Reserve Volume ($EC = TV + ERV$) (A -> II).

Functional Residual Capacity ($FRC$) is the volume of air that remains in the lungs after a normal expiration, including $ERV + RV$ (B -> IV). Vital Capacity ($VC$) is the maximum volume of air a person can breathe in after a forced expiration, encompassing $ERV + TV + IRV$ (C -> I).

A-II, B-IV, C-I, D-III perfectly matches Option (3).