C. Digs in ruins to find artifacts to study. I hope this helps.
Immigrants felt racial tension when moving to the United States after world war 2 because many Americans thought that they were taking their jobs. the United States then put forth the alien and sedition acts to help relieve this tension by deporting and limiting the amount of people coming in from other countries. Kentucky and Virginia resolutions was a protest against these acts. it proves that some of America was in disagreement
It inspired bus boycotts in other cities, spreading the civil rights movement
Manifest Destiny was first used by John O'Sullivan in an 1845 newspaper in New York.