The Red Boulevard Neighborhood Used to Be Restricted to Families

The Red Boulevard neighborhood used to be restricted to families of old wealth and aristocracy. Of late, families of low economic backgrounds are moving in and mingling with the current residents. Even the local country club has relaxed its membership rules to admit members from a wider range of backgrounds. The given scenario is an example of:

A) social breakdown.
B) social class manifestation.
C) status float.
D) social class fragmentation.
E) class float.