MrHuff and Puff Exhales Normally; Then,using Forced Expiration,he Exhales as Much

Multiple Choice

Mr.Huff and Puff exhales normally; then,using forced expiration,he exhales as much air as possible.The volume of air still remaining in his lungs is called

A) expiratory reserve volume.
B) tidal volume.
C) inspiratory reserve volume.
D) vital capacity.
E) residual volume.