A 76-year-old man with AF presents in stable condition after 3 days of symptoms and wants elective cardioversion. TTE shows no severe mitral stenosis; CHA₂DS₂-VASc = 4. Best strategy?ACardiovert now without anticoagulationBStart aspirin onlyCHeparin drip during cardioversion but no further therapyDAnticoagulate for >=3 weeks before elective cardioversion or perform TEE-guided cardioversion with periprocedural and >=4 weeks of anticoagulationENo cardioversion; rate control onlyCheck my answer