Answer:
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I believed the answer is 4. It makes sense because, after the agricultural revolution, people switched from hunting and gathering to crops and needed necessary tools to do that. Number 1 doesn't really make sense because in the Classical Era, they created religions early, so it's not it. B doesn't really make sense and 3 is wrong because they still used animals.
The answer is 1870 i’m pretty sure
The correct answer is West Africa
The rice plantations were labor intensive and the farm holders relied on slave labor. The slaves working on the farms came from West Africa and were transported through the Atlantic. They comprised those captured in battle or sold as punishment