Which of the following statements is true about the advantages of federalism?

Which of the following statements is true about the advantages of federalism?
 
  A. The division of power makes it easy for voters to hold elected officials accountable.
  B. Dividing power between the center and the states makes it far easier for the government to respond quickly to national problems.
  C. By emphasizing uniformity, federalism helps boost cohesiveness in the society.
  D. Variation in policies reduces redundancies, inefficiencies, and inequalities.
  E. Federalism provides training and creates opportunities for future national leaders.

Question -2-

If the United States exports more goods than it imports, it would be experiencing a(n) __________.
 
  a. positive balance of trade
  b. external trade deficit
  c. international surplus
  d. negative balance of trade

Question -3-

In which two states is a supermajority in a referendum necessary for the passage of a constitutional amendment?
 
  A. Minnesota and Delaware
  B. California and Utah
  C. Nevada and
  D. Virginia and Louisiana
  E. New Hampshire and Florida