According to the Assigning Resource Roles document, to set up a group for selection in a resource plan, the group record needs to include the pps_resource role. This role grants access to the Resource Management application and allows the group members to view and update their resource allocations. The other options are not correct, as they are not required for a group to be selected in a resource plan. The it_project_user role grants access to the Project Portfolio Management application and allows the user to create and update projects. The itil role grants access to the ITIL application and allows the user to manage incidents, problems, and changes. The resource_manager role grants access to the Resource Management application and allows the user to manage resource plans and allocations.