Although members of a particular social group carry the same identity of membership, some members are better off, better liked or respected, and have more authority or power than others. The group exhibits:

A) social inequity.
B) a status hierarchy.
C) a "big cheese" structure.
D) intraclass rivalry.

Status Hierarchy

A social structure that ranks individuals or groups in a community on the basis of esteem and prestige.

Social Inequity

The existence of unequal opportunities and rewards for different social positions or statuses within a group or society.

Big Cheese

Big Cheese is a colloquial term used to describe someone of importance or high status in a particular area or field.