Answer:
Nie jestem pewna ale chyba wikingowie
The answer is...
d. Adolf Hitler
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C. The people of Russia had an election and voted to become a communist country.
Cloth and spices brought back by the crusaders led to greater interest in trade.
Answer:
Think about slavery. The average African-American will have very low morale if he is forced to work. Low morale means their work ethic will slip, and sub-par work ethic leads to sub-par product. You'll actually be saving money if you free your slaves. Rather than paying tens of thousands of dollars to buy them and then paying for all of their expenses beyond that, you'll just have to pay them monthly or weekly wages. Abolition is both cost effective and stimulating to the economy.
Explanation:
Large concentrations of individuals were more expensive to care for, especially medically. Most slave owners were primarily concerned about the so-called "wage bubble" that would burst and leave all slave owners destitute, when in reality slave owners who freed their slaves and still had some working for them as freemen flourished.