Respuesta :
Among the choices presented above, it is the town garbage collection fees that can help municipal governments earn or raise revenue. The state funds, the residential water fees and the city traffic fines do not go to the municipal's budget bank.
I believe the answer is: state funds
Municipal government refers to the smallest form of government that exist on local level, and the outside source are the funds that do no come from the local's government operation. From the option above, states fund is considered as an outside source because it comes from the establishment outside the local government.