Humberto, a mexican, is hired as a worker at a construction firm in chicago at a lower wage than his white american counterparts. this scenario is best explained by the of prejudice.

The answer for this question is: exploitation theory
The exploitation theory refers to an economic element that make a certain worker get higher benefits for the reasons except for their work results.
In society, this type of exploitation often goes unnoticed because the threat of losing their job if he dares to speak up and the fierce competition in the job market.

The answer should be b

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.