The national, the state and the local government all share the same functions of providing services to the citizens.
They have what is known as concurrent powers. This means that they all have the powers to tax the citizens that live in the country at these levels, they can build roads also help to provide social services that are needful.
They can offer these services at the same time and they can be done within the same territory to the same citizens.
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Complete question: National, state, and local governments all share the same function of —
a) establishing public schools
b) settling disputes between states
c) providing services to the electorate
d) negotiating treaties with foreign countries