Which of the Following Statements BEST Captures the Meaning of "Dual

Which of the following statements BEST captures the meaning of "dual federalism"?

A) State governments are autonomous and supreme in matters of state affairs, and the national government is autonomous and supreme in matters of national affairs.
B) State governments must abide by the laws and regulations of the national government as well as the regulations of international bodies, such as the UN, to which the United States is bound by treaty.
C) The needs of citizens are best met by a system in which citizens can choose between similar services provided by either the national or their state government.
D) Since federalism frequently results in dual and competing loyalties, the national government must assume supreme authority in all matters in order for the American people to survive as a nation.
E) The needs of citizens are best met by a system in which state and national governments combine resources to provide certain services.