Refer to the following figure to answer the following questions.
Figure 7.1: U.S. Unemployment Rate: 1975-2015 
(Source: U.S. Bureau of Labor Statistics)
-Using Figure 7.1, Which of the following year(s) are the approximate trough of a recession?
Definitions:
Intrusive Thoughts
Unwanted, involuntary thoughts, images, or ideas that can be distressing or disturbing.
Panic Attacks
Sudden episodes of intense fear or anxiety that trigger severe physical reactions when there is no real danger or apparent cause.
Aftermath
The consequences or effects that follow a significant event or disaster.
Stress
A physical, mental, or emotional factor that causes bodily or mental tension.
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