Your network contains an Active Directory forest. The forest contains one domain named
contoso.com.
You attempt to run adprep /forestprep and the operation fails.
You discover that the first domain controller deployed to the forest failed.

You need to run adprep /forestprep successfully.
What should you do?

A.
Move the PDC emulator role.

B.
Move the RID master role.

C.
Move the infrastructure master role.

D.
Move the schema master role.

E.
Move the global catalog server.

F.
Move the bridgehead server.

G.
Install a read-only domain controller (RODC).

H.
Deploy an additional global catalog server.

I.
Restart the Active Directory Domain Services (AD DS) service.