When you exhale, air flows through respiratory structures in which sequence?
a. Alveolus, bronchiole, bronchus, larynx, trachea, pharynx, nasal cavity
b. Alveolus, trachea, bronchus, bronchiole, larynx, pharynx, nasal cavity
c. Alveolus, bronchus, bronchiole, trachea, larynx, pharynx, nasal cavity
d. Alveolus, bronchiole, bronchus, trachea, larynx, pharynx, nasal cavity