Anon-premiseapplicationisexposedtoexternalusersthroughaWindowsCommunicationFramework（WCF）serviceendpointregisteredintheWindowsAzureAppFabricServiceBus.Youneedtorecommendanapproachforprovidingtransport-levelsecuritythatmaximizesperformanceandminimizesbandwidthrequirements.Whatshouldyourecommend？（）

A.Usereliablemessaging.UseHTTPformessagedelivery.
B.Usebinarymessageencoding.UseTCPformessagedelivery.
C.UsePlainOldXML（POX）messages.UseTCPformessagedelivery.
D.UseMessageTransmissionOptimizationMechanism（MTOM）messageencoding.UseHTTPSformessagedelivery