Will give brainliest if correct!

what is a bureaucracy?

a.
a group of officials who run a government or other organization

b.
a hereditary ruling class

c.
a densely packed battle formation used by the athenians

d.
a city-state of ancient greece

A.  a group of officials who help run a government or other organisation  

B.  a hereditary ruling class  

C.  a densely packed battle formation used by the Athenians  

D.  a city-state of ancient Greece

c) the invasion of the shang

c) troops march forward in close formation against newer, more accurate weapons