The three goals of the United Nations were and are to promtoe human rights, to force nations to comply to international standards and to increase the standard of living for all people. All of these goals have been met with mixed success. While somehave been more effective, others have not.
The Constitution enumerates certain powers which are reserved to the federal goverment and other powers which are delegated to the state.
Those powers which are not explicitly related in the document to any of the goverment levels will automatically be reserved to and exercised by the supreme federal goverment.
I believe the correct answer is B