What Did Native Americans Have in Common with the Zulu

What did Native Americans have in common with the Zulu of South Africa and the aboriginal people in Australia?

A) They belonged to some of the most ancient agricultural civilizations in the world.
B) They all looked to central governments for protection and assistance in their struggle against white supremacist settlers.
C) They found themselves pushed aside by a centralizing government trying to control large interior regions.
D) They all saw themselves pulled into the vicious debt cycle that accompanied cotton sharecropping.
E) Both groups saw such little chance at advancing in civil rights that they resorted to emigration.