问题：

[单选]

You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003, and all client computers run Windows XP Professional.
You create a shared folder named TestKing Docs on a member server named TestKing3. TestKing Docs will store project documents.
You need to ensure that users can access previous version of the documents in TestKing Docs.
What should you do?（）

A . Modify the Offline Settings option for TestKing Docs to make all files available offline.
B . Configure shadow copies of the volume containing TestKing Docs.
C . Use Task Scheduler to create a job that uses the Copy command to copy all changed documents to another folder every day.
D . Use the Backup utility to schedule a backup of all changed documents every hou