You have a computer named Computer1 that runs Windows 7. Computer1 is a member of an ActiveDirectory domain. Remote Desktop is enabled on the computer. You share a folder on Computer1. Youneed to configure Computer1 to meet the following requirements: Allow computers in the local subnet to access the shared folder  Prevent computers in remote subnets from accessing the shared folderAllow all computers to connect to Computer1 by using Remote Desktop. What should you do?（）

• A、Modify the subnet mask.
• B、Modify the Public folder sharing settings.
• C、Disable network discovery on all computers located in remote subnets.
• D、Modify the properties of the File and Printer Sharing firewall exceptions.