Adeveloperisdesigningamulti-tierwebapplicationanddiscoversaneedtohidethedetailsofestablishingandmaintainingremotecommunicationsfromtheclient.Inaddition，becausethebusinessandresourcetiersaredistributed，theapplicationneedstominimizetheinter-tiernetworktrafficrelatedtoservicingclientrequests.Whichdesignpatterns，workingtogether，addresstheseissues？（）
A.FrontControllerandTransferObject
B.FrontControllerandServiceLocator
C.BusinessDelegateandTransferObject
D.BusinessDelegateandInterceptingFilter
正确答案：参考C
