Which following , I don’t see anything
Well we know that it is not A or C, Reason: Some states have up to 5m people in it. (For example about 8 live in just new York alone.)
And we also know its not 10 billion. Reason for this: Scientist have proven that there is no more then 8 billion people today.
And so now we got 6.5 billion is the closest, the real number is about 7.5 billion.
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Feudalism was well established in Europe by the 800s CE but appeared in Japan only in the 1100s as the Heian period drew to a close and the Kamakura Shogunate rose to power.
European feudalism died out with the growth of stronger political states in the 16th century, but Japanese feudalism held on until the Meiji Restoration of 1868.
Hope this helps and have a WONDERFUL day!!
Early farmers who cultivated crops and domesticated animals