How was the treatment of slaves different in West African cultures than in the Atlantic slave trade?

AIn West African cultures, slaves were considered the upper class, while in the Atlantic slave trade, they were the lower class.

BIn West African cultures, slaves were constantly whipped, while in the Atlantic slave trade, they were given more care.

CIn West African cultures slaves were treated like people, while in the Atlantic slave trade they were treated like property.

DIn West African cultures, slaves were allowed to eat with their masters, while in the Atlantic slave trade, they were not.