Which of the following best explains the growth of public sector employment relative to the private sector since 1950?
A. Labor supply has increased at the same pace in both sectors, but labor demand has increased more rapidly in the public sector.
B. Labor supply has increased at the same pace in both sectors, but labor demand has increased more rapidly in the private sector.
C. Labor demand has increased at the same pace in both sectors, but labor supply has increased more rapidly in the public sector.
D. Labor demand has increased at the same pace in both sectors, but labor supply has increased more rapidly in the private sector.