A 58-year-old with AF of unknown duration is hemodynamically stable and symptomatic. You plan cardioversion today. What is the recommended strategy?AImmediate cardioversion without anticoagulationBCardioversion followed by aspirin for 4 weeksCTEE-guided cardioversion with periprocedural and >=4 weeks of anticoagulationDBegin warfarin and defer cardioversion until INR therapeutic x1ERate control only; cardioversion is contraindicated if AF duration unknownCheck my answer