Whichtwoinstallationsmustbecompletedtoallowthird-partysoftwaretointeractwiththeCiscoUnifiedCallManagerExpresssystemthroughTAPILite？（）

A．thefilesintheCiscoIOSTSPfileonallWindowsPCsontheLAN B．boththeCiscoIOSTSPandTAPILitefilesonallWindowsPCsontheLAN C．theCiscoTAPILitefilesonthesameWindowsPCwherethesoftwareisinstalled D．thefilesintheCiscoIOSTSPfileonthesameWindowsPCwherethesoftwareisinstalled E．theCiscoIOSTSPonthesameWindowsPCwherethesoftwareisinstalledandonallremoteteleworkerPCs