How did Henry Clay's idea of creating an American Transportation System change from the 1800s to today? In your opinion was he correct? How has it helped the United States? How has it hurt the United States?

What was a result of Henry Clay's American System? It united the North, South, and West economically and politically. So I think it had a positive effect. It has helped the U.S. because it united our people. It hurt the U.S. because we now have arguments on which country is north, or south.

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest

can someone me with this question:  

1) the end of the conflict between the north and the south didn’t just mark the end of a war; it marked the end of an entire way of life.” which statement best describes what this statement means?  

a) the southerners were no longer free and were controlled by the northern states.

b) the industrial economy in the north was not sustainable.

c) slavery became illegal, which changed completely the south’s labor force and the agricultural economy was destroyed.

d) the states decided to relinquish their independence and return to britain’s rule.