A 28-year-old with moderate persistent asthma (daily symptoms; nighttime awakening weekly) has two ED visits in 6 months. Spirometry shows FEV1 65% predicted. According to current US guidance, which controller approach is preferred?AAs-needed SABA aloneBDaily low-dose ICS with as-needed SABA onlyCMaintenance-and-reliever therapy using low-dose ICS-formoterolDDaily leukotriene receptor antagonist with as-needed SABAEChronic oral prednisone 10 mg dailyCheck my answer