Question

What condition most directly contributed to the spread of disease in city tenements in the early 1900s?

Answer 1

Overcrowding was most directly contributed to the spread of disease in city tenements in the early 1900.

Back then , the city was shocked by smallpox epidemic. Since smallpox is easily transmitted by contact, overcrowded areas are the perfect breeding spot for smallpox ( they still has not developed small pox vaccine back then)

Answer 2

it was

Inadequate sanitation.

or letter D. if on Edg

thank me later