The 3 most numerous ethnicities are Hispanics, African Americans, and Asian Americans of major U.S. ethnicities among states and within urban areas. Hispanics are clustered in the Southwest, African Americans in the Southeast and Asian Americans in the West.
You didn't include the map, so I can't be entirely sure, but if it's the same test that I have, it's B.
Answer:
Explanation: Segregation is the physical separation of peoples on the basis of ethnicity and social custom historically applied to separate African Americans and Mexican Americans from whites in Texas
