Your network contains an Active Directory domain named contoso.com. All domain controllers run Windows
Server 2012 R2.
You need to ensure that the local administrator account on all computers is renamed to L_Admin.
Which Group Policy settings should you modify?

A.
Restricted Groups

B.
Security Options

C.
User Rights Assignment

D.
Preferences

Explanation:
In Group Policy Object Editor, click Computer Configuration, click Windows Settings, click Security Settings,
click Local Policies, and then click Security Options.
In the details pane, double-click Accounts: Rename administrator account.
The Security Options node includes security settings regarding interactive logon, digital signing of data,
restrictions of access to floppy and CD-ROM drives, unsigned driver installations as well as logon dialog box
behavior. This category also includes options to configure authentication and communication security within
Active Directory.