Why did many Americans blame Britain for their Problems?

They believed that British actions were harming their economy and threatening expansion into western lands. (impressment, forts on US land supporting Native Americans)

Explanation:

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 would be:

b. race