Use the Following to Answer Questions

Use the following to answer questions .
Exhibit Real GDP and Employment

-(Exhibit: Real GDP and Employment) The exhibit shows data on real GDP and employment for a particular country from the year 1991 to 2000. The trough(s) in economic activity occurred:

A) once in the ten-year period, in 1996.
B) twice in the ten-year period, in 1996 and in 2000.
C) once in the ten-year period, in 1991.
D) thrice in the ten-year period, in 1991, in 1996, and in 2000.