Both a and c are correct, however I think that A would be the most correct answer in this case.
Answer:
In 1830, he signed the Indian Removal Act, which gave the federal government the power to exchange Native-held land in the cotton kingdom east of the Mississippi for land to the west, in the “Indian colonization zone” that the United States had acquired as part of the Louisiana Purchase.
Explanation:
Washington Gladden's ideas would most closely be tied to the period in U.S. history that begins just after the Civil War and leads into Reconstruction.
The Athen's was the main governing body and they made the decisions including voting on laws, deciding whether to go to war, and determining foreign policy.
Answer: Huge numbers of Americans had rejected the political liberalism that had characterized the 1960s by the start of the 1970s.
Explanation:I just got it right lol