The Trends in the Share of Mandatory and Discretionary Spending

The trends in the share of mandatory and discretionary spending suggest that the percentage attributable to

A) mandatory spending is rising but so is the percentage attributable to discretionary spending.
B) mandatory spending is falling but so is the percentage attributable to discretionary spending.
C) mandatory spending rose from the late 1960s through the middle 1990s stabilized for a few years and then began to rise again.
D) discretionary spending rose from the late 1960s through the middle 1990s but has stabilized.