They weren't making money and no one was using it
The answer is B. To disrupt the South's ability to trade
In general terms one can think of expansionism, that is occupying land that were deamed not productive in order to cultivate or explore -- onje can check the American expansion to the West, this shows that the settlers had little to no regard to the first settlers.
After the consolidation of the American territory, latinos and native Americans were relegaded as second class citizens, along with ex-slaves, most lations and Afroamericans occupied big centers but mostly in the outskirts, and Native Americans now are over 5 million people, a few more than a half this number live in Alaska alone.
Nowadays there is the problem with the border with Mexico and one can say that there is justified fear of human traficking and smuggling with immigrants who seek a better life in the US, the problem is, there are good people who want to work and prosper in the US but they are blended together with evil-doers, still showing a general suspicion to Latinos as a group.
I'm going to go with Russification because in the quote above it says "one language, one church, and one ruler." I feel as if this quote is calling for assimilation. When the Russian empire was big, in order to maintain their identity the Russians forced the countries that were under their rule to learn the language and culture and to give up the culture and language of the country that the people lived in (the countries that fell under the Soviet Union). All that to say, countries that fell under the Soviet Union had to loose their identity and take up the Russian identity.
Hopefully this helped and good luck.
