C. Dismissing classics in favor of Christian teachings
Hope this helps =]
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An important issue separating the country related to the power of the Federal government. Southerners believed that they had the power to declare any national law illegal. Northerners believed that the national government's power was supreme over that of the states. The North believed that the nation was a union and could not be divided.
I think its D cause they didn't have that kind of Independence they sometimes worked 11 hours and even more only later on there the eight hour workday scheduled was put into the system of working people.
Answer:
It improves trade between different parts of the world.