The Empirical and Theoretical Results on Occupational Crowding in the United

The empirical and theoretical results on occupational crowding in the United States suggest that

A) occupational crowding is substantial in the United States, but this should not be thought of as a source of discrimination.
B) occupational crowding is substantial in the United States, and much of this should be thought of as a source of discrimination.
C) occupational crowding is substantial in the United States, but occupational crowding is unrelated to discrimination.
D) there is minimal occupational crowding in the United States, and therefore it cannot be a source of discrimination.
E) there is minimal occupational crowding in the United States, but this is still thought to be an important cause of racial discrimination but not gender discrimination.