c. Prussia unified Germany into one nation in 1971.
Answer:
I can answer your question for A.
Explanation:
South America and North America began to exchange goods and both of their economies prospered, and the Monroe doctrine dictated that European powers were forbidden from interfering or colonizing South America
Answer: that northern leaders had different ideas for dealing with many issues and challenges of restoring the southern states to the union.
The civil war was the most costly war in american history in terms of total devastation. brainly
Explanation: