In a Federal System,the Fifty State Governments Retain Sovereignty,which Prevents

In a federal system,the fifty state governments retain sovereignty,which prevents the federal government from interfering in the financial matters of states.However,state governments can become involved in the fiscal matters of local governments,which is most recently evident in the state takeover of the city finances of Harrisburg,Pennsylvania,and Detroit,Michigan.Why can state governments interfere in the fiscal matters of local governments,but the federal government cannot interfere in the fiscal matters of state governments?

A) The Constitution was amended to increase the power of states over local matters.
B) The U.S.Constitution explicitly gives states the right to intervene in local affairs.
C) Local governments are not recognized by the U.S.Constitution.
D) Congress passed a law allowing the states to intervene in local affairs.
E) Many state governments are authoritarian.