What Is the Most Important Teaching Point from the Nurse

What is the most important teaching point from the nurse to the older client diagnosed with asthma?

A) It is essential to rinse out the mouth after use of inhaled medications, especially steroids.
B) Asthma is treated with the same types of medications in older clients as in younger clients.
C) Place several rescue inhalers around the house and label them with brightly colored tape.
D) If a metered-dose inhaler is too difficult to use, a nebulizer can be used for treatments.