Answer:
D. Stratification based upon race and ethnicity is highly pervasive and affects all aspects of political, economic, and social life.
Explanation:
When the members of the society are classified according to the socioeconomic strata, it is said to be the process f social stratification. It is a form of differentiation on the grounds of social status, occupation, and income of the individuals. Stratification is the position which an individual holds within a defined social group or geographical area.