You have a standalone server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). You install the FTP Server Windows component on Server1. You create several folders under the Ftproot folder as shown in the exhibit. (Click the Exhibit button.) A user named User1 connects to ftp://server1 and reports that he can view the Localuser folder and all of its subfolders. A user named User2 reports the same problem. You need to ensure that when users connect to ftp://server1, they can only view the content located under their user folder. What should you do? （）

• A、From the properties of the Default FTP Site, change the directory listing style to Unix.
• B、From the properties of the Default FTP Site, change the FTP site directory to c:/inetpub/ftproot/localuser.
• C、From the properties of each user account, modify the home folder. Remove the Users group from the access control list of c:/inetpub/ftproot.
• D、Delete the Default FTP Site. Create a new FTP site. Select the option to isolate users and specify the FTP site directory of c:/inetpub/ftproot.