Ik this answer and this answer is b
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Answer is b. the ownership of slaves.
Owning slaves on large scale is a privilege the rich and powerful people enjoys, giving them large benefits of enjoying their slaves’ rewards of labor. Slave owning indicates not just the wealth one has, even the political influence and social prestige.<span>
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It was a representative government
Humans have more developed brains and opposable thumbs. We also have better abilities to communicate.