Answer: The correct answer is "Moving from processing legal paperwork to serving as a "champion" of employee concerns"
Explanation: The statement "Moving from processing legal paperwork to serving as a "champion" of employee concerns" best describes Sara's change of role because in the field of human resources of a company an administrative role implies the handling of paperwork, records, files, etc.
And an operational role would imply the development of an execution function as it would be to listen, attend, and solve the needs of the employees.