Refer to the Following Figure When Answering the Following Questions

Multiple Choice

Refer to the following figure when answering the following questions.
Figure 7.2: United Kingdom Unemployment Rate: 1971-2015 (Source: OECD and Federal Reserve Economic Data, Federal Reserve Bank of St. Louis)
-Given the U.K. unemployment rate data depicted in Figure 7.2, the year of the trough of a recession was:

A) 1991.
B) 2006.
C) 1981.
D) 1973.
E) 1993.