Ghettos during world war ii europe were used

a. as prisoner of war camps in all areas of europe
b. as prison areas for people suspected of causing insurrection
c. to protect those who were most vulnerable during combat
d. to separate jewish populations from german or non-jewish populations

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.