A.CausestheinterfacetoapplyISLframingfortrafficonVLAN7
B.ConfiguresthetrunkinginterfacetoforwardtrafficfromVLAN7
C.ConfigurestheinterfacetobeatrunkingportandcausestrafficonVLAN7tobe802.1qtagged
D.ConfiguresthetrunkinginterfacetosendtrafficfromVLAN7untagged
E.Noneoftheotheralternativesapply