Why did tenement buildings like these become commonplace in early twentieth-century cities?

Question

A) Progressive reformers convinced many local governments to improve their cities' living conditions.
B) Urbanization driven by economic opportunities led to population growth and overcrowding in cities.
C) They were built to house agricultural workers as farm production rapidly increased to meet demand.
D) Labor Unions convinced businesses to build housing for their workers during contract negotiations.

Answer 1

The correct answer is B) Urbanization driven by economic opportunities led to population growth and overcrowding in cities.

In the early twentieth century, many people moved to cities for jobs in factories and other industries, leading to increased population density and the need for affordable housing, resulting in the rise of tenement buildings.