问题：

[单选]

You are the network administrator for The network consists of a
single Active Directory domain named All domain controllers run
Windows Server 2003, and all client computers run Windows XP Professional. Each
domain server has a locally attached tape device.
You need to back up each domain controller. Your backup process must fulfil the
following requirements:
a. System recovery must be possible in the event of server failure.
b. The system configuration and all current dynamic disk configurations must be
backed up.
c. Other data partitions do not need to be backed up.
What should you do?（）

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.