What was one result of landlords not taking care of tenements in the early 1900s?

People only lived in them for short periods of time.

People got sick due to unsafe living conditions.

Rooms were overcrowded despite regulations.

Elevators were usually broken and out of order.

People got sick due to unsafe living conditions.

Explantation:

During the Industrial Revolution working and living conditions were horrible. While people were mass moving to cities to be closer to work, they lived in slums. Historians say that five to nine people lived in a single room. Wages were low so they could not afford houses, hotels or upscale apartments. There were not enough rooms for everybody and people got sick because of the poor living conditions. Tenement houses did not proper waste disposal methods, most of them did not have fresh air and proper sunlight.