Reading Comprehension (RC) | Re: Since the early 1970’s, historians have begun to devote

Which of the following, if true, would most strongly support Keyssar’s findings as they are described by the author?
(A) Boston, Massachusetts, and Quincy, Massachusetts, adjoining communities, had a higher rate of unemployment for working-class people in 1870 than in 1890.

(B) White-collar professionals such as attorneys had as much trouble as day laborers in maintaining a steady level of employment throughout the period 1870-1920.

(C) Working-class women living in Cambridge, Massachusetts,
...

---