Respuesta :
The correct answer is D.
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-There were no sewage/draining systems so the gravel often flooded with trash, food, etc.
-The living conditions were poor because people threw trash on the floor and did not clean very well.
-Kids would work 12 hours a day/6days a week (this refers to "no labor laws"
Knowing all this information this leads us to get the answer D.
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