Booker T. Washington spent his early childhood in slavery. Following emancipation, Washington (like many Blacks) felt that an education was the best way to improve his living standards, so he wanted to educate himself to improve his life.
You didn't add the choices, but I've had this question before the answer is that nearly all of the male immigrants were male, so children came from unions with Native Americans.
To declare boundaries between the thirteen colonies and the Appalachian Mountains, so American colonists couldn’t create tension with the French and Native Americans who live across the mountains.
The answer is B, Jacob Riis.
Jacob Riis is most known for his pictures of an impoverished New York City, and worked for better living conditions in those areas.