You are the administrator of your company’s network. Your network has 200 Windows 2000 Professional computers and 15 Windows 2000 Server computers. Users on the network save their work files in home folders on a network server. The NTFS partition that contains the home folders has Encrypting File System (EFS) enabled. A user named John leaves the company. You move all of the files from John’s home folder to his manager’s folder. When the manager attempts to open any of the files, she receives the following error message. “Access denied.” You want the manager to be able to access the files. What should you do?（）

A. Grant the manager NTFS Full Control permission to the files.
B. Grant the manager NTFS Take Ownership permission to the files.
C. Log on to the network as a recovery Agent. Decrypt the files for the manager.
D. Log on to the network as a member of the Backup Operators group. Decrypt the files for the manager.