WhichcommandwillneedtobeaddedtoExternal_Atoensurethatitwilltakeoverifserial0／0onExternal_Bfails?() A.standby1priority130B.standby1preemptC.standby1trackfastethernet0/0D.standby1track10.10.10.1

WhichcommandwillneedtobeaddedtoExternal_Atoensurethatitwilltakeoverifserial0／0onExternal_Bfails?()

A.standby1priority130

B.standby1preempt

C.standby1trackfastethernet0/0

D.standby1track10.10.10.1

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