Black Americans could not easily mix in American society because______.

A．were treated unequally by American Indians
B．were willing to support newcomers financially
C．were great helpers of slaves and Indians
D．were reluctant to help newcomers to adapt to the new surroundings

A．the problem of prejudice and discrimination in the U.S. will be solved soon
B．blacks are free people now, so they can enjoy equal rights as whites
C．prejudice and discrimination are more severe in the South than in the North
D．now there are more blacks living in the North than in the South