Answer:
The correct answer is option A) "approve/disapprove state sales tax rates"
Step-by-step explanation:
County governements in the USA are part of state goverments and function as local administrative portions.
The functions of counties are related to administrative tasks within their states such as law enforcement, elections administration and administration, property tax collection, amongo others.
Counties, on the other hand, cannot aprove or disapprove state sales tax rates since that function is under state government´s responsibility.