Which tool should you use?

Your network contains an Active Directory domain named contoso.com.
Domain controllers run either Windows Server 2003, Windows Server 2008 R2, or Windows Server 2012.
A support technician accidentally deletes a user account named User1.
You need to use tombstone reanimation to restore the User1 account. Which tool should you use?

A.
Esentutl

B.
Ldp

C.
Ntdsutil

D.
Active Directory Administrative Center

Explanation:
we’re told that we use tombstone reanimation
so the only correct answer is LDP (which by the wayis implemented since Server2003)
===========
old explanation :
ADAC would be the perfect solution if this environment was in 2008 R2 functional level; however it is currently
below that due to there being Windows Server 2003 DCs.
This means you must use the LDP utility as previously.
http://technet.microsoft.com/en-us/magazine/2007.09.tombstones.aspx
Using LDP to Reanimate Tombstones
[…]
Now that I’ve shown you how the nuts and bolts of tombstone reanimation work, I want to demonstrate how I
can use LDP to restore the CN=John Smith user I deleted.
[…]
Using ADRESTORE to Reanimate Tombstones
Once you figure out how to use LDP, reanimating a tombstone is not terribly difficult. But it’s not very
convenient, either. Fortunately, the good folks at Sysinternals (a company that is now part of Microsoft)
developed a command-line tool to simplify the reanimation process. This tool, called ADRESTORE, is available
from the Microsoft Web site at microsoft.com/technet/ sysinternals/utilities/AdRestore.mspx. Installation is
simple. Just copy the executable to an appropriate directory on your machine, for instance the C:\WINDOWS
\SYSTEM32 directory.
ADRESTORE runs in two modes. If you run it with no parameters, it will list all the tombstones in the
CN=Deleted Objects container of the default domain.