It Is Sometimes Observed That African Americans Are Increasingly Entering

It is sometimes observed that African Americans are increasingly entering mainstream institutions like universities, prestigious occupations, political offices, etc.At the same time, they remain relatively isolated socially from Euro-Americans.African Americans, then, exhibit:

A) a high degree of cultural assimilation and a low degree of structural assimilation.
B) a high degree of structural assimilation and a low degree of cultural assimilation.
C) an increasing degree of primary structural assimilation and a low degree of secondary structural assimilation.
D) a low degree of primary structural assimilation and an increasing degree of secondary structural assimilation.