Which of the Following Statements About the Constitutional Framework of the U.S.federal

Which of the following statements about the constitutional framework of the U.S.federal system is true?

A) Apart from the powers delegated to it by the Constitution, the national government has numerous inherent powers.
B) Within the scope of its operations, the state government is supreme.
C) The state governments have all of the powers delegated to the central government.
D) Some powers are specifically denied to both the national and state governments.
E) The constitutional framework of the U.S federal system is extremely complicated and ambiguous.