Answer:
citizens elect others to make decisions
Unity between the countries for each to work together.
It is C. The Secretary of State William Seward argued that the U.S. should buy Alaska because U.S. wants expand, and Alaska had valuable resources.
Alexander was great indeed. He managed to unite the entire Greece under his rule, and not only that, but he also vastly increased the size of his empire, covering almost entirely what was then the known world. Another great part about him was that he was not merciless towards his enemies and never imposed his religion or laws to anyone, but rather allowed different cultures to remain as they were, as long as they behaved properly and paid taxes and what not.
Scientific Revolution came in when there are more people who are having discoveries, inventions and findings. It definitely gave the man another perspective of understanding occurrence and relationships among objects. Through Science people were able to determine that there are explanations behind everything.
