What should you do?

You work as an enterprise administrator at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers on the Domain.com network run Windows Server 2008.
Domain.com contains a domain controller named CERTKILLER-DC02 that runs the Active Directory services. You have received instructions from management to perform critical updates without restarting the domain controller.
What should you do?

A.
The best option is to start the Active Directory Domain Services on CERTKILLER-DC02.

B.
The best option is to disconnect CERTKILLER-DC02 from the network and start the Windows update feature.

C.
The best option is to stop the Active Directory domain services and install the updates.

D.
The best option is to stop the Active Directory domain services and install updates. Thereafter you should disconnect from the network and then reconnect again.

Explanation:
Thereafter you should start the Active Directory domain services after installing the updates.
If you want to do offline critical updates without restarting the domain controller, you need to stop the Active Directory domain services and install the updates. Start the Active Directory domain services after installing the updates. If you stop the Active Directory domain services, you do not need to restart the domain controller.