Answer:
I think C would best fit.
update - it's A
Explanation:
Answer:
After the Piegan massacre, in 1870, military officers were barred from holding elected or appointed offices. During Grant's first term, American Indian Wars decreased. By the end of his second term, his Peace policy fell apart. Settlers demanded to invade Native land to get access to gold in the Black Hills.
Explanation:
It would have to be the naturalization act and the land boundary act