But even after the abolition of slavery, organized or individual

But even after the abolition of slavery, organized or individual discrimination was practiced against ______.
A、Chinese-Americans
B、American Indians
C、Japanese-Americans
D、Black Americans
【正确答案】：D
【题目解析】：即使在废除奴隶制之后，仍然存在针对美国黑人的有组织的或个人的歧视。