As a Percent of the Total Economy, Spending on Medicare

As a percent of the total economy, spending on Medicare has

A) increased from 0.7 percent in 1974 to 2.6 percent today.
B) increased from 1.2 percent in 1974 to 9.5 percent today.
C) remained relatively constant, at about 3.9 percent.
D) declined from 9.5 percent in 1974 to 1.2 percent today.
E) declined from 2.6 percent in 1974 to 0.7 percent today.