Which of the following is NOT a special purpose of small units of government in Georgia?

The correct choice pertains to the distinctive responsibilities and powers attributed to small units of government in Georgia. Typically, small units of government, such as cities and counties, are involved in specific local functions that cater to the needs of their communities.

Operating public schools, encouraging economic development, and managing transit systems fall within the scope of local government duties. These functions are essential for local governance, as they directly impact the quality of life of residents and facilitate local growth and infrastructure.

However, setting state interest rates is not a responsibility of local governments. This function is generally handled at the state or federal level, often by a central banking authority or a specific state agency that focuses on fiscal and financial policies. Therefore, it is not aligned with the special purposes assigned to smaller units of government, making it the correct answer for the question.