You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com.All servers in the ABC.com domain， including domain controllers， have Windows Server 2012 R2 installed.You have created and linked a new Group Policy object （GPO） to an organizational unit （OU）， named ABCServ， which host the computer accounts for servers in the ABC.com domain.You have been tasked with adding a group to a local group on all servers in the ABC.com domain.This group should not， however， be removed from the local group.  Which of the following actions should you take？（）

• A、You should consider adding a restricted group.
• B、You should consider adding a global group.
• C、You should consider adding a user group.
• D、You should consider adding a server group.