The Following Is the Most Accurate in Describing City Composition

The following is the most accurate in describing city composition: __________.

A) cities are more racially and ethnically homogeneous than the countryside
B) ethnic and racial homogeneity raise the potential for competition and conflict
C) ethnic and racial heterogeneity can lead to tolerance or to competition and conflict
D) cleavage is less likely to occur when racial and ethnic boundaries parallel socioeconomic boundaries.