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$.$ Organizations have moved to a specialized workforce where workers are job experts and are therefore better able to self$-$manage.

B$.$ Organizations have tecome more centralized and vertically oriented.

C$.$ Many traditionally non$-$managerial jobs have changed to include managerial activities.

D$.$ The traditional pyramid structure has been replaced by the helix structure in most organizations.

E$.$ Employee empowerment has eliminated the need for first$-$line supervisors.