I believe you answer is C. But don’t quote me on that.
Main groups = labor activists, female reform organizations who wanted to protect women and children from exploitation, and forward looking businessmen who wanted workers to have a voice in economic decision making
Main ideas = bringing significant change in American social and political life.
The Sumerians did it so the y had a surplus of food and had spedlazation
So they don’t get attacked and they can trade for food and advice