B. Humans domesticating dogs
Harriet Tubman was an African American slave. She first risked her life when she developed the "Underground Railroad", which was a secret system that she created in order to help fugitive slaves escape. The second way that she risked her life was becoming a nurse during the Civil War.
Because the English economy improved drastically. Political and religious conflict was diminished. So everyone stayed there.
As president of the united States of America, Andrew jackson invited chang, increased pride and introduced democracy as he lead the country.
It is frist one, A because the unemployment
