You are the network administrator for A. Datum Corporation. The network consists of a single Active Directory forest that contains three domains named adatum.com， child1.adatum.com， and child2.adatum.com. The functional level of the forest is Windows Server 2003. The help desk department is responsible for resetting passwords for all user accounts in the forest except for accounts that have administrative privileges. There is an organizational unit （OU） named Corp_Users in each domain that contains the user accounts in that domain. All of the user accounts that have administrative privileges are in the default Users container in each domain. There is a universal group named HD_Users in the adatum.com domain. All user accounts for the help desk department users are members of the HD_Users group. You need to delegate the required authority for resetting passwords to the users in the help desk department.  For which Active Directory component or components should you delegate control？ To answer，select the appropriate component or components in the work area.