A 26-year-old with moderate persistent asthma has two exacerbations in 6 months despite adherence to low-dose ICS (beclomethasone 80 µg BID) plus as-needed SABA. According to 2020 updates, the preferred next step is:AAdd a long-acting muscarinic antagonist as controllerBSwitch to single-inhaler low- or medium-dose ICS-formoterol used for both maintenance and reliever (SMART)CAdd a leukotriene receptor antagonist and continue SABADKeep regimen and add chronic oral prednisone 5 mg dailyESwitch to as-needed SABA onlyCheck my answer