Question

Which of the following was a common problem in tenement buildings in the early 1900s

Answer 1

A. Few windows and poor ventilation

Answer 2

I don't know what the "followings" are, but I can tell you that Tenement buildings had no interest in caring for the people who lived there. Tenement housing had its people share bathrooms, there were no lights(besides the window), and the rooms were small and cramped.