Your network contains a domain-based namespace named DFS1. DFS1 has Windows 2008 Server mode enabled. You need to ensure that only files and folders in DFS1 that users have permissions to access are displayed. What should you do?（）

• A、Disable referrals.
• B、Modify the system access control list.
• C、Enable access-based enumeration (ABE).
• D、Modify the discretionary access control list.