Select the correct set of events that occur during expiration

A) relaxation of external intercostal muscles

B) diaphragm is arched upwards

C) intra-pulmonary pressure increases

D) ribs and sternum are lifted up

E) pulmonary volume increases

• A

  A, B, D, E

• B

  B, C, D

• C

  A, B, C

• D

  B, D, E