Which statement is a central idea in Chapter I and II of Narrative of the Life of Frederick Douglass?

A:An enslaved person born to the plantation master receives more privileges than those who are not.
B:Enslavers treat enslaved people as if they are equivalent to animals.
C:Plantation owners force enslaved people to sing to show that they are happy with their work.
D:Enslaved people are unable to make decisions for themselves.