Which of the Following Statements About American Budgetary Deficits Is

Which of the following statements about American budgetary deficits is most accurate?

A) Foreign investors are legally prohibited from purchasing U.S. Treasury bonds.
B) Over the past thirty years, the deficit has risen sharply when Democrats controlled the White House and dropped precipitously when Republicans controlled it.
C) The budgetary deficit today is about 4 percent of GDP.
D) The current deficit is substantially lower than it was in 2009.
E) Treasury bonds are increasingly difficult to sell, as they provide low returns, and the government has defaulted on them repeatedly in the past forty years.