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Germany had just successfully invaded France.
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Answer:
I think it is either c or d
This was the time when Islam started spreading through Africa and those who resisted it and fought wars against Islamic conquerors would be enslaved and sold. Europeans also started participating in this slave trade and would buy numerous slaves from the Arabs who would enslave their prisoners of war and who often traded with Europeans.
This was because slavery was not accepted or approved by all all races. Slavery was only accepted by the whites only.Due to this reason the idea about all men were created equal was raised and hence no single individual from whatever race is suppose to be exposed to slavery.
It's United States of America.