SethTardiisaged53andintendstoretireatage65.Sethhasjustcalculatedhisretirementincomegapandwillrequireanadditional$25,680perannumfor20yearstoachievehispost-65lifestyleobjectives.HowmuchwouldSethhavetosaveeachyearinordertoachievehisdesiredlevelofretirementincome?(Assumea3.5percentrealrateofreturn.)Selectone: