The Previous Surplus of the Social Security System Is Expected

The previous surplus of the Social Security system is expected to become a deficit because the

A) payroll tax rate is scheduled to decline at that time.
B) number of workers relative to the number of Social Security recipients will decline as the baby boom generation moves into the retirement phase of life.
C) stock market is not expected to perform nearly as well during the next two decades as was the case during the 1980s and 1990s.
D) growth rate of the U.S. economy is expected to slow during the next two decades.