<span>The answer is Letter D. It is written in a tone that is appropriate for an explanatory essay than the other letters. Since the letters a,b,c, is informal for an explanatory essay. Letter D. explains the Neolithic Revolution with formality and proper use of words, than the other letters.</span>
Slavery started because people couldn't do their jobs themselves, so they had other people do it for them.
Nativism and Immigration Restriction. Anti-immigrant sentiment had been prevalent in the United States since at least the 1840s. It had many sources. Nativists played on fears of violence and of the diversity of thought, belief, and custom represented by European radicalism and religion.
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And a slave-owner could, depending on how many slaves he ... argued that people naturally followed two types of law
