Your network contains a server named Server1. Server1 runs Windows Server 2008 R2 and has the Active
Directory Lightweight Directory Services (AD LDS) role installed. Server1 hosts two AD LDS instances named
Instance1 and Instance2.
You need to remove Instance2 from Server1 without affecting Instance1.
Which tool should you use?

A.
NTDSUtil

B.
Dsdbutil

C.
Programs and Features in the Control Panel

D.
Server Manager

Explanation:
Reference 1:
http://technet.microsoft.com/en-us/library/cc794857.aspx
Administering AD LDS Instances
Each AD LDS instance runs as an independentand separately administeredservice on a computer.
Reference 2:
technet.microsoft.com/en-us/library/cc794886.aspx
To remove an AD LDS instance
1. To open Programs and Features, click Start, clickSettings, click Control Panel, and then double-click
Programs and Features.
2. Locate and click the AD LDS instance that you want to remove.
3. Click Uninstall.
Note
It is not necessary to restart the computer after you remove an AD LDS instance.