单项选择题

A. Use the Backup utility to back up the system files and to create an Automated System Recovery (ASR) disk.
B. Use the Backup utility to back up the contents of all mounted drives.
C. Use the Backup utility to back up only the System State data.
D. Use the Copy command to copy C:\windows and its subfolders to a shared folder on the network.
E. Use the Xcopy command to copy C:\windows and its subfolders to a shared folder on the network.