Which of the following is an example of how cities responded to public health and sanitation issues?
a. the publication of muckraker journals
b. the creation of open sewer systems
c. the chlorination and purification of drinking water
d. the establishment of tenement housing

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Hagrid
The following is an example of how cities responded to public health and sanitation issues is the chlorination and purification of drinking water. The answer s letter C.

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