This quote is one possible description of what? "A bias toward an abstracted, idealized, homogenous spoken language which is imposed and maintained by dominant bloc institutions and which names as its model the written language, but which is drawn primarily from the spoken language of the upper middle class."
a. The core of prescriptivism
b. A concept which drives the 'language subordination process'
c. The core of descriptivism
d. (Standard) language ideology