How might a historian describe the "middle class" of the early 1900s? a. a class people best described as the "working poor," who could only provide their families just enough to survive. b. a class of people who did no work, and had no value to themselves or society. c. a class people best described as the "ultra-rich" business owners, who could afford every luxury possible. d. a class of people not rich or poor who could provide for their families and afford some leisure activities.