Although it is possible to differentiate between managers and non-managerial employees in many organizations, what has changed in the recent past to blur those lines? A. The traditional pyramid structure has been replaced by the helix structure in most organizations. B. Many traditionally non-managerial jobs have changed to include managerial activities. C. Employee empowerment has eliminated the need for first-line supervisors. D. Organizations have become more centralized and vertically oriented. E. Organizations have moved to a specialized workforce where workers are job experts and are therefore better able to self-manage.