Which of the Following Best Describes Economic Mobility in Late

Which of the following best describes economic mobility in late nineteenth century America?

A) There were dramatic leaps forward for those in the bottom rungs.
B) Millions experienced an improved standard of living, while the gap between rich and poor widened.
C) It was an era when 73% of Americans controlled most of the nation's wealth.
D) Economically, it was difficult for those in the middle class, who saw their status remain stagnant or decline.
E) Upward mobility was nonexistent for all levels of society  rich, poor and middle class.