Answer:
- commonly overcrowded, unsanitary, and unsafe for their residents.
Explanation:
The number of immigrants in the USA led to the creation of "tenements," a dwelling place that was rented by more than three families. This was started in New York city's Lower East side area, which was more populous, and later on expanded.
The extended family in tenements was so large that "overcrowding" became an issue. It failed to meet the minimum standard for providing the tenants comfort and sanitation. It was also unsafe because it was made of cheap construction materials.
