As Blacks Migrated from the South to the North Seeking

As Blacks migrated from the South to the North seeking better jobs and greater opportunities,

A) European ethnic groups viewed Blacks moving north as helpful in the overall economy and non-threatening.
B) Whites in the dominant group became more vocal about their contempt for lower status Whites.
C) White ethnic groups became "insiders," while Blacks became the "other".
D) White ethnics continued in-fighting and paid little attention to the arrival of Blacks.