Your network has client computers that run Windows 7 Enterprise.   You plan to deploy new administrative template policy settings by using custom ADMX files.   You create the custom ADMX files， and you save them on a network share. You start Group Policy Object Editor （GPO Editor）.   The custom ADMX files are not available in the Group Policy editing session.   You need to ensure that the ADMX files are available to the GPO Editor.   What should you do？（）

• A、Set the network share permissions to grant all Windows 7 users Read access for the share.
• B、Copy the ADMX files to the central store，and then restart the GPO Editor.
• C、Copy the ADMX files to the %systemroot%/inf folder on each Windows 7 computer，and then restart the GPO Editor
• D、Copy the ADMX files to the %systemroot%/system32 folder on each Windows 7 computer，and then restart the GPO Editor.