Which of the following factors contributed most to the expansion of both the persian and greek empires

What directive in source a might have been at the root of the action described in source b?

How does an oligarchy conflict with democratic principles

Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub