A Client Is Learning Metered-Dose Inhaler Technique

A client is learning metered-dose inhaler technique. The client says, "I don't understand why I have to use this thing. Can't I just take pills?" The nurse responds that the inhalation route:

A) Is easier to master than is oral therapy.
B) Is less expensive than is oral therapy.
C) Is more likely to lead to termination of the disease process than are pills.
D) Delivers the medication directly, resulting in fewer systemic side effects.