Why Are Sociologists Often Critical of the Idea of Universal

Why are sociologists often critical of the idea of universal education as it exists as a "great equalizer" that creates a more free and equal society?

A) because schooling and education-particularly literacy-create elitists who wave their educations around as signs of being better than others
B) because work carries with it more practical knowledge than schools can teach
C) because contemporary schools often carry within them a "hidden curriculum" that reproduces social inequality
D) because sociologists, by and large, want to abolish schools
E) because schools reinforce critical thinking skills that make it difficult for social scientists to educate people without them questioning their authority