Which of the following groups became the main residents of the inner city during the Gilded Age? clerks and teachers doctors and lawyers the wealthy the working poor

the working poor became the main residents of the inner city during the Gilded Age.

During the Gilded age, most of industrial factories and mining camp exist in the inner city. Back then, the company will provide a residential area for each of their workers, which became the reason why the working poor overpopulated the area.