Correct. The answer is a. To substantiate her argument that industrialization transformed the social geography of Gilded Age cities, the author describes the changes that transformed Cleveland, Ohio, during John D. Rockefeller’s time.
Incorrect. The answer is a. To substantiate her argument that industrialization transformed the social geography of Gilded Age cities, the author describes the changes that transformed Cleveland, Ohio, during John D. Rockefeller’s time.