A 60-year-old woman with long-standing Graves disease and poorly controlled thyrotoxicosis presents with new-onset atrial fibrillation. In addition to beta-blockade and anticoagulation as indicated, what is a key aspect of management?ANo further thyroid-directed therapy is requiredBTreating the underlying hyperthyroidism as a priority to help restore sinus rhythmCAvoiding all anti-thyroid drugs because they worsen arrhythmiaDRelying solely on electrical cardioversionEUsing digoxin alone without addressing thyroid functionCheck my answer