WhichtwostatementsaretrueregardingEIGRP？（）

A.PassiveroutesareintheprocessofbeingcalculatedbyDUAL. B.EIGRPsupportsVLSM，routesummarization，androutingupdateauthentication. C.EIGRPexchangesfullroutingtableinformationwithneighboringrouterswitheveryupdate. D.Ifthefeasiblesuccessorhasahigheradvertiseddistancethanthesuccessorroute，itbecomestheprimaryroute. E.Aqueryprocessisusedtodiscoverareplacementforafailedrouteifafeasiblesuccessorisnotidentifiedfromthecurrentroutinginformation.