The Correct answer is the amazing Marco Polo
They used the caste system as a form of a social class and ranked everyone based off of their role and job in their life.
I can't give you two to the three, but women were at home working hard and fighting for the right to vote, African Americans moved North for Industrial jobs, the ones serving were discriminated against, Conscientious Objectors such as Alvin C. York believed it was against their religion to go out and kill people so they abstained (Alvin eventually went to war so he was only an objector for some time)
A mostly Urban population means that most people live in cites, and that most of them would work in factories or industries. All that people helped start the Industrial Revolution. The answer is A!
Have a nice day! :)
These kingdoms traded along major, interconnected routes that led to Asia and the Middle East. They often traded salt and gold. As a result, these kingdoms experienced an economic boom and were able to expand and flourish.