The TestKing.com network consists of an Active Directory forest that contains a root domain, named testking.com, and two child domains, named us.testking.com and uk.testking.com. The root domain hosts a domain local distribution group, named TKGroup. You are preparing to issue TKGroup read-only access to a shared folder hosted by the us.testking.com domain. You want to make sure that TKGroup is able to access the shared folder in the us.testking.com domain. Which of the following actions should you take?