England's southern colonies in North America developed a farm economy that could not survive without slave labor. Many slaves lived on large farms called plantations. These plantations produced important crops traded by the colony, crops such as cotton and tobacco.
And
Throughout the 17th and 18th centuries people were kidnapped from the continent of Africa, forced into slavery in the American colonies and exploited to work as indentured servants and labor in the production of crops such as tobacco and cotton.
So the question ask what is the result in the westward expansion in the mid 1800's and the best answer among your choices is letter A. increased dramatically. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications
