Final answer:
The HR Service Configuration is the module that allows HR admins to manage the behavior of the HRSD application. It facilitates setting up services, managing HR criteria, and configuring case and task management.
Step-by-step explanation:
The module that allows HR admins to control the overall behavior of the HRSD (Human Resources Service Delivery) application is the HR Service Configuration. This module allows administrators to configure various settings within the application, such as setting up services, creating and managing HR criteria, and handling case and task management configurations. It does not refer to the HR Catalog, which is more about listing available services, the Employee Service Center, which is a portal for employees to access HR services, nor HR Performance Analytics, which focuses on measuring and analyzing HR performance.