A Patient Is Learning Metered-Dose Inhaler Technique

A patient is learning metered-dose inhaler technique.The patient says, "I don't understand why I have to use this thing.Can't I just take pills?" The nurse's response is based on the knowledge that:

A) The inhalation route is safer and more effective than are pills.
B) The inhalation route is less expensive than is oral therapy.
C) The inhalation route is easier to master than is oral therapy.
D) The inhalation route is more likely to lead to termination of the disease process than are pills.