Approval routing policies in Oracle HCM Cloud, configured via Transaction Console or BPM Worklist, use specific bases to define approver chains. The documentation lists these as:Employee Supervisor Hierarchy(management chain),Position Hierarchy(position-based reporting),Job Levels(relative to the requester’s job level), andApproval Groups(static or dynamic groups). These options provide flexibility to route approvals based on organizational structure or predefined lists, covering most use cases.

Option B includes "Grades," which influence salary, not approvals, and "Organization Hierarchy," which isn’t a direct routing basis. Option C adds "Organization Hierarchy," which is redundant with Supervisor Hierarchy. Option D’s "Department Manager" isn’t a distinct basis—it’s part of Supervisor Hierarchy. Option A accurately reflects Oracle’s supported routing bases.