When creating a checklist task, you must assign a task performer.

Full Detailed In-Depth Explanation:

When configuring checklist tasks in Oracle Global Human Resources Cloud, a task performer must be assigned to indicate who is responsible for completing the task. The "Using Global Human Resources" guide under "Checklists" specifies the supported performer types as: Worker (the individual the checklist pertains to), Manager (the worker’s line manager), Initiator (the person who triggered the checklist), User (a specific named user), and Area of Responsibility (a group defined by responsibility criteria, such as HR representatives). Option A lists all five supported values accurately. Option B adds "HR Specialist Job Role," which is not a directly supported performer type for checklists (job roles are used in security, not task assignment). Option C omits "User," and Option D incorrectly includes "HR Specialist Data Role" instead of "Area of Responsibility." Thus, A is the correct answer.