Which of the Following Statements About the Tenth Amendment Is

Which of the following statements about the Tenth Amendment is accurate?

A) Because it cannot define the federal government's lawful power,it has not proved a strong protection against the growth of federal power at the expense of the states.
B) Because it defines state powers too narrowly,it has not proved a strong protection against the growth of federal power at the expense of the states.
C) It has proven to be a strong force and preventive against the "nationalization" of the federal system.
D) Because of its ambiguous nature,it has proved incompatible with the American federal system.
E) It has vastly exceeded the Anti-Federalists' intent when the amendment was proposed.