Answer: The answer is D.
Explanation: When the Europeans came to America, they brought diseases with them that killed millions of Native Americans. In addition, the Europeans and the Native Americans had many conflicts because the Europeans were taking over the lands of Native Americans.
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The conservatism of Taft was the main reason for Roosevelt to split and run for the presidency again.
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Explanation:</u>
Theodore Roosevelt and William Howard Taft were close friends but, the thing that separated them from each other was, their thinking. When Roosevelt became the President of the US, he brought out many progressive policies, and most of them passed in Congress.
On the other hand, William Taft had exact opposite thinking, he was a man with conservative thinking and limited himself to this particular approach. He became the US president but, his conservative ideas were against Roosevelt's thinking, and due to this, Roosevelt chose to split and form the Progressive Party and run for the presidency.
C the united states entered world war 1
After the slavery was officially abolished in all of the US, the African Americans were quick to move out of the South and migrate massively toward the North. There were several factors as to why this happened. One big factor was that even though the slavery was abolished, the segregation and discrimination continued, so the opportunities in life were very limited. The South was not industrialized, while the North was heavily industrialized, thus the African Americans saw an opportunity to work in the factories instead in the fields. The atmosphere in the North was much better for them, as the majority of the people welcomed them and had no problems with them because of their skin color.