The answer is c
I had the same question on a test
Answer:
Option B
The South had more power in congress than the North
If taken to extremes, nationalism can create a great deal of international instability and violence. Extreme nationalism can lead to a sense of superiority and even militarism and aggression towards others who are not part of the nation.
C, The armies used roads to travel quickly. Roads facilitated the movement of armies, people, and goods across plains, deserts and mountains.
One important advantage that primary soruces have over secondary sources is that primary sources offer a firsthand account of an event - b, which isn't the case with secondary sources. Although this leaves primary sources prone to being biased compared to secondary sources.
