In a Study of Trends in Residential Segregation and Poverty

In a study of trends in residential segregation and poverty in the United States,sociologist Douglas Massey and his colleagues found that __________.

A) the largest cities have made the most progress in reducing housing segregation
B) many urban problems are actually lessened by heavy segregation
C) failure to enforce federal laws against housing discrimination continues to produce rates of black segregation that are far higher than those experienced by any other group in U.S.history
D) Both a and c above
E) None of the above