Theories of Racial Superiority Were Significant in the South Because

Theories of racial superiority were significant in the South because they:

A) created a sense of unity that bridged class divisions among most southern whites.
B) were primarily adhered to by the planter elite that owned slaves.
C) played no role in encouraging white support of slavery.
D) were created by slaves to justify their enslavement.
E) fostered slave rebellions among slaves who believed in the inferiority of the planter class.