During the Civil War, the American people were deeply dividedthe issue of slavery.

I believe the answer is

B. Over

Answer:

B) over

Explanation:

Think about it in terms of your siblings arguing about something, instead of Americans.

During lunch my siblings argued the issue of who looked better in a dress.

I hope this helped!!

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.