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Pollution in the tenements created  hazardous conditions, especially for the children. Sickness spread quickly with so many people living in a small space which  led to many becoming gravely ill after a year of living within the buildings. It was a breeding ground for small pox, cholera,  typhoid, and tuberculosis. The death rate increased from diseases during this period. These families could not afford  medicines to take care of their maladies due to small incomes. As the population continues increasing, it caused even more  crowding and made conditions more severe. One in every ten infants would die living in the tenements. The people working  in the factories had to fight for basic necessities to live.

the answer is c have a good day