Answer:
Stratification, is the right answer.
Explanation:
Social stratification is a sort of social differentiation whereby the population are classified into socioeconomic layers on the basis of their income, social status, wealth or derived power. In other terms, it is the social ranking of an individual within a social group or unit and geographic region.
Hope this is the right Calderon your talking about lol.
Calderón served as National President of the party, Federal Deputy, and Secretary of Energy in Vicente Fox's cabinet. He served in the cabinet of the previous administration until he resigned to run for the presidency and secured his party's nomination.