A 35-year-old non-smoker has newly diagnosed asthma with symptoms twice a week and waking at night once a week. She currently uses a short-acting beta agonist as required. What is the most appropriate next step in long-term management?AContinue short-acting beta agonist as needed onlyBAdd a low-dose inhaled corticosteroidCStart oral Prednisolone long termDStart a long-acting beta agonist monotherapyESwitch to leukotriene receptor antagonist monotherapyCheck my answer