What Does the Evidence Suggest About the American Economy

What does the evidence suggest about the American economy?

A) The U.S. economy is diminishing and soon other industrialized nations will surpass the United States.
B) The U.S. economy is so large that it will remain the dominant economy in the world for the near future.
C) No other nation has an economy anywhere near the size and power of the U.S. economy.
D) There is no way to know the details about other nations' economies for comparison purposes.