What would be a public health initiative.
decrease political corruption
fund arts programs in school
add fluoride to city drinking water
increase activity in downtown business areas

add fluoride to city drinking water

Explanation: Adding fluoride to city water would supposedly help to protect people's teeth. Decreasing political corruption, increasing activity in downtown business areas, and funding arts programs in schools have nothing to do with public health.

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add fluoride to city drinking water

Explanation:

Public Health is the set of measures carried out by the State to guarantee the physical, mental and social well-being of the population. For this reason, we can say that an example of public health is the moment when the government adds fluoride to the city's drinking water, since fluoride promotes oral health benefits for the population.

At the international level, public health is coordinated by the World Health Organization - WHO, currently composed of 194 countries. The body consists of a specialized agency of the United Nations (United Nations) that works side by side with the government of the countries to improve the prevention and treatment of diseases, in addition to improving the quality of air, water and food.

In addition to the political-administrative context, public health is also the branch of science that seeks to prevent and treat diseases through the analysis of health indicators and their application in the fields of biology, epidemiology and other related fields.