While segregation is not enforce by law, how and why are communities still predominantly composed of one race or another?

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.

when   i did the assesment i chose c it was correct

i would think the answer is between b and d i would say d sorry if wrong