Write about the year of depression ( write in points )

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

the answer is c, all the other options are things they are known for.

hope this ☺️

bujías y una hora antes y no me parece muy difícil

i really need the answer