In the Nineteenth Century,middle-Class Success Stories Were Mostly a Myth

In the nineteenth century,middle-class success stories were mostly a myth because:

A) the nineteenth century remained very stagnant as far as social mobility was concerned.
B) no one from the middle class ever broke through into the upper class;class distinctions were rigidly enforced by law.
C) they were entirely the creation of the popular novelists of the day.
D) Europe had,by that time,developed a truly classless society based on merit.
E) those that occurred were from the middle class itself,the sons of well-off farmers or professionals.