Answer:
A progressive social reformer and activist, Jane Addams was on the frontline of the settlement house movement in the late 19th and early 20th centuries. She later became internationally respected for the peace activism that ultimately won her a Nobel Peace Prize in 1931, the first American woman to receive this honor.
The answer is B, widespread unemployment
The sun is at the center of our solar system
I'm not completely sure, but it may have to do with time zones?
Answer: Former slaves like Frederick Douglass and Harriet Tubman spread the word about how slaves were treated in the south by writing newspapers and books, like the North Star Newspaper (Douglass), and the novel Uncle Tom's Cabin (Tubman).