The correct answer is C) land-hungry settlers ruthlessly oppressed the indigenous peoples standing between them and Manifest Destiny.
The summary of the 19th century that most clearly emphasizes the theme of violent conflict is "Land-hungry settlers ruthlessly oppressed the indigenous peoples standing between them and Manifest Destiny."
Since the arrival of the first European colonists to the North American territories, the problems between Native American Indians and White settlers intensified because of the possession of the land. Years went by and in the 1800s problems increased. The Indian Removal Act that was signed into law by United States President Andrew Jackson on May 28, 1830, allowed the Executive to take land west the Mississippi to be settled in exchange for Native American Indian lands in state borders.
