Which Relationship Is an Example of Staff Authority in Classical

Which relationship is an example of staff authority in classical theory?

A) The shift supervisor directs the staff nurse to help another nurse admit two new clients.
B) The unit manager asks the staff nurse to participate in a unit conference.
C) The team leader asks the staff nurse to assume care of an extra client after another nurse goes home ill.
D) The staff nurse's mentor calls to see how the nurse's first day on a new unit progressed.