Which best describes the golden horde?

a.) a group of mongols who controlled russian territory for more than 200 years

b.) the many monks and nuns who lived in large monasteries or convents

c.) the armies of justinian

d.) the people who rebuilt the city of constantinople

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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