A 71-year-old woman with non-valvular atrial fibrillation, hypertension, type 2 diabetes, and no prior stroke asks about stroke prevention. Her CHA₂DS₂-VASc score is 4. What is the most appropriate recommendation according to Canadian guidelines?ANo antithrombotic therapy is neededBAspirin 81 mg daily aloneCDual antiplatelet therapy with aspirin and clopidogrelDOral anticoagulation with a direct oral anticoagulantEWarfarin with target INR 1.5-2.0Check my answer