What Does the Expression "Where You Stand Depends on Where

What does the expression "where you stand depends on where you sit" mean?

A) The power of a state depends on its geographic location.
B) An adviser's bias becomes more obvious when the adviser takes a strong position on an issue.
C) The status of a bureaucratic agency depends on the quality of its offices.
D) The power of an adviser is reflected by how close the actor sits to the leader in important meetings.
E) Leaders of bureaucratic agencies often advocate policies that reflect their organizations' needs.