Your network contains two Active Directory forests named contoso.com and adatum.com. All servers run
Windows Server 2012 R2. A one-way external trust exists between contoso.com and adatum.com.
Adatum.com contains a universal group named Group1. You need to prevent Group1 from being used to
provide access to the resources in contoso.com.
What should you do?

A.
Change the scope of Group1 to domain local.

B.
Modify the Allowed to Authenticate permissions in adatum.com.

C.
Enable SID quarantine on the trust between contoso.com and adatum.com.

D.
Modify the Allowed to Authenticate permissions in contoso.com.

Explanation:
* Accounts that require access to the customer Active Directory will be granted a special right called Allowed to
Authenticate. This right is then applied to computer objects (Active Directory domain controllers and AD RMS
servers) within the customer Active Directory to which the account needs access.
* For users in a trusted Windows Server 2008 or Windows Server 2003 domain or forest to be able to access
resources in a trusting Windows Server 2008 or Windows Server 2003 domain or forest where the trust
authentication setting has been set to selective authentication, each user must be explicitly granted the Allowed
to Authenticate permission on the security descriptor of the computer objects (resource computers) that reside
in the trusting domain or forest.