One of the Explanations of Continued Racism in America Is

Multiple Choice

One of the explanations of continued racism in America is that we have:

A) found that racial minorities have lower IQs (Herrnstein) .
B) become postracial,like Puerto Rico.
C) imported a colonized population (through slavery) and continued to exclude them.
D) found that racism is a biological trait,something that is impossible to eliminate.