A Nurse Is Explaining to a Patient with Asthma What

A nurse is explaining to a patient with asthma what her new prescription for prednisone is used for. What would be the most accurate explanation that the nurse could give?

A) To ensure long-term prevention of asthma exacerbations
B) To cure any systemic infection underlying asthma attacks
C) To prevent recurrent pulmonary infections
D) To gain prompt control of inadequately controlled, persistent asthma