Consider the following list: 1. Change authority 2. Change manager 3. Change advisory board (CAB) Which one of the following is the BEST description of the items above?

Job descriptions are HR constructs tied to individuals; these items are flexible roles that can be assigned across different people or groups.

Functions in ITIL refer to self-contained organizational units with specific resources and capabilities (e.g., Service Desk); these are not functions.

Teams imply a fixed staffing structure, whereas the CAB and change authority are dynamic groupings that vary per change or organization.

ITIL deliberately defines these as roles rather than rigid job descriptions or teams, because a single person can hold multiple roles and a role like CAB can be filled by a temporary group assembled for a specific change. This flexibility allows organizations to scale change governance appropriately.