External criticism is very important when it comes to analyzing data, because as a researcher it is possible to get too "close" to the data, in that one can stop being objective and start looking for ways to match the data to the desired results.
Answer:
A
Explanation:
after the civil war the south was thrown into chaos almost the whole of its industry relied on slavery so once it was taken away the south was very poor
Columbus, Ohio was the first president of the AFL
Answer:
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