The correct answer is: "a school board that oversees public education for several communities".
A special-purpouse district, within the US administration, is a goverment unit created to serve a specific objective and separated from local goverments, such as those which govern a town, city, county, etc, hence enjoying administrative and fiscal independence. For instance, school boards are one example as they are fully dedicated to the educative function and other aspects related to it.
America because they dont want to kill everyone. and they want peace