Which of the following was a cause of public health problems in large American and European cities?

Which of the following was a cause of public health problems in large American and European cities? A. A lack of proper sewers and trash collection B. Overcrowded living conditions C. A lack of clean water supplies D. All of the answer choices apply.

Public Comments

1. D.
2. D. All of the above
3. D
4. a
5. Sounds like a test ques., how about u tell us your guess.
6. All, all, all.....think no public sewers, TB, dead horses in the street.
7. D
8. That'd be A...and B...and C--which is D. Often, when All of the Above is offered, you should go with it.
9. It's definitely D. People just threw their trash right out their windows in the olden days.
10. D. All of the choices apply. Before the 1920s or so, the sewage and water refinement systems were almost nonexistant and the population of poor in Europe was already huge, and it increased in America with immigration. If there's one group that almost always has a lot of children, it's the poor. These factors added up to very unhealthy living conditions.