The Nurse Instructs a Patient with Asthma on Bronchodilator Therapy

The nurse instructs a patient with asthma on bronchodilator therapy.Which statement indicates patient understanding?

A) "The medication widens the airways because it acts on the parasympathetic nervous system."
B) "The medication widens the airways because it stimulates the fight-or-flight response of the nervous system."
C) "The medication widens the airways because it decreases the production of histamine that narrows the airways."
D) "The medication widens the airways because it decreases the production of mucous that narrows the airways."