Suppose the Stock of Government Debt in Canada at the End

Suppose the stock of government debt in Canada at the end of one fiscal year is $475 billion.If the stock of debt falls to $461 billion by the end of the next fiscal year,then we know that in that year

A) the government had a primary budget surplus of $14 billion.
B) the government had a primary budget deficit of $14 billion.
C) tax revenues increased by $14 billion.
D) the government had an annual budget surplus of $14 billion.
E) debt-service payments fell by $14 billion.