Correct. The answer is d. Public transportation systems allowed middle-class people to live in the suburbs and work in the city.

Incorrect. The answer is d. Public transportation systems allowed middle-class people to live in the suburbs and work in the city.

Correct. The answer is c. Reformers and developers often failed to take into account the interests of the residents of neighborhoods they planned to demolish.

Incorrect. The answer is c. Reformers and developers often failed to take into account the interests of the residents of neighborhoods they planned to demolish.

Correct. The answer is d. In almost all cases, cities burned their garbage, or simply concentrated it in locations outside of the city.

Incorrect. The answer is d. In almost all cases, cities burned their garbage, or simply concentrated it in locations outside of the city.

Correct. The answer is a. Over the course of the second half of the nineteenth century, city governments took responsibility for a variety of municipal services that had previously been supplied by private companies on a for-profit basis.

Incorrect. The answer is a. Over the course of the second half of the nineteenth century, city governments took responsibility for a variety of municipal services that had previously been supplied by private companies on a for-profit basis.

Correct. The answer is c. As nineteenth-century cities grew, health and sanitation problems reached intolerable levels.

Incorrect. The answer is c. As nineteenth-century cities grew, health and sanitation problems reached intolerable levels.

Correct. The answer is c. Increasingly, middle-class status was defined, at least in part, by what one owned and what one wore.

Incorrect. The answer is c. Increasingly, middle-class status was defined, at least in part, by what one owned and what one wore.