How Do the Members of the Upper-Middle Class Differ from Those

How do the members of the upper-middle class differ from those in the lower-middle class?

A) Unlike upper-middle class, those in the lower-middle class have less autonomy and freedom from supervision in their jobs.
B) Unlike upper-middle class, those in the lower-middle live on earned income rather than accumulated or inherited wealth.
C) Unlike upper-middle class, those in the lower-middle class don't require a college education for their jobs.
D) Unlike upper-middle-class, those in the lower-middle class are relatively isolated from the rest of the population.
E) Unlike upper-middle-class, those in the lower-middle class work in minimum wage jobs, or are often unemployed.