A nurse is quizzing a nursing student who is preparing to care for a patient with cystic fibrosis. The patient uses inhaled tobramycin [TOBI], dornase alfa [Pulmozyme], ibuprofen, and salmeterol [Serevent Diskus]. Which statement by the student indicates understanding of this patient's drug regimen?
a. "Dornase alfa is used as needed to decrease viscosity of sputum."
b. "Ibuprofen is used to minimize pleuritic pain associated with coughing."
c. "Salmeterol acts by causing bronchodilation and improving ciliary function."
d. "Tobramycin is given via a metered-dose inhaler to avoid systemic side effects."