问题

Racial discrimination has still ______ in some parts of the U.S.A. since itafter the Civil War.
A:been existed; has been done away
B:existed; has been done away with
C:been existed; has been done away with
D:existed; was done away with
B:existed; has been done away with
C:been existed; has been done away with
D:existed; was done away with
正确答案是: