I believe the answer is Barbed Wire.
Befor the inventions of barbed wire, the Cattles are let to roam freely across the plains and the owners are required to pay a lot of cowboys to supervise them so they didn't go missing. Witht he invention of barbed wire, they can keep the cattle in a secure place without supervision.
Hello There!!~
Your best answer is B. Wealth was being distributed too unevenly in the United States.
Hope This Helps!!~
By ♡°Itsbrazts♡°
The city located there is Melbourne, Victoria.
Answer:
White men, Africa, hatred for
Explanation: