C. It increased circulation due to its efficiency and economy
Before the printing press, there were no ways to make multiple copies of papers. Every thing had to be written by hand and it was a long and strenuous process. Printing presses made it easier to produce in large quantities and increased circulation.
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America should be a melting pot because with more and more ethnic entities, a lot of people have learned to be open minded, and have learned to respect and learn about other cultures. It also provides workers to boost the American economy. Illegal immigrants or not.
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There was no world war 112