Which of These Is Not a Criticism of the Assimilation

Multiple Choice

Which of these is not a criticism of the assimilation model?

A) It does not consider the amount of time that it may take some groups to assimilate.
B) It fails to recognize that the histories of Blacks and Whites in this country have been very different and have long-lasting effect.
C) It ignores the fact that immigrants entering the U.S. at different times have faced very different economic conditions and demands for labor.
D) It does not account for language barriers between groups.