I know C is right, but the others not sure
Great Britain, France, and Germany wanted to colonize Africa and Southwest Asia, especially around 1884 (the year of the Berlin Conference). They wanted control of natural resources, because as they continued to industrialize, they needed more and more raw materials, which were not always available in their countries.
The best way to describe why Southerners fought these tariffs is the Southerners wanted to buy less expensive goods from England.
