You want to configure a security relationship by which users in the Melbourne domain of the Adatum.com forest are able to access resources in the Sydney domain of the Contoso forest.
Users do not require access to resources in any other domains in either forest.
Which of the following should you configure to accomplish this goal?
A . Configure a forest trust.
B . Configure an external trust.
C . Create a shortcut trust.
D . Configure name suffix routing.
Answer: B