A. Amend the sequence of the tasks within the task definition page.
The task definition page creates a reusable task template. Its settings are global, not specific to the task's order within a particular payroll flow.
C. Amend both the task sequence on the task sequencing page and the sequence within the edit task details page.
This is incorrect because it implies two separate, required actions. The sequence number is a single property that can be edited in two different UIs (the main sequencing page or the task details pop-up). Changing it in one place is sufficient.
D. Amend both the sequence of the tasks on the task definition page and the task.
This option is incorrect as it wrongly points to the task definition page, and the phrase "and the task" is ambiguous and procedurally incorrect.