Answer:Racial segregation
Explanation:
The U.S did not join the League of Nations following WWI. Even the the President of the United States at that time, Woodrow Wilson, was enthusiastic about the organization, they didn't officially join it. The reason why they didn't join it was because of isolationists in congress, in other words, people that didn't agree with what other people are interested in. Because of the war and all of the fatal deaths of Americans, people didn't want the U.S to be affiliated with Europe in any way.
The correct answer is B. The Enforcement Act of 1870.
Indeed, President Grant had taken power after Lincoln’s assassinations and was committed to make sure Southern states would abide by federal laws concerning the civic rights of black Americans.
The Ku Klux Klan was terrorizing freedmen and women and preventing them from exercising the right to vote, to be elected as a public servant or official and even to seek protection from the police and demand judicial redress from courts. Most members of the Klan were arrested, prosecuted and jailed and the Klan was virtually annihilated.
Answer: the correct answer is A. admission of a territory to the United States as a state.
Explanation: most states like Montana, Wyoming, Colorado, New Mexico, Idaho, Utah, Arizona, and Nevada experience a process to become states.