Which of the Following Is NOT a Principle That Describes

Which of the following is NOT a principle that describes how social classes emerge from a society?

A) People who interact with each other over time tend to communicate in similar ways.
B) People in one group can move easily to another group but only in an upward direction.
C) Virtually every organization and group develops a hierarchy.
D) We are more likely to interact with people from our own social class.