Testosterone is a hormone associated with masculine characteristics. Identify the functional group circled. 
Definitions:
Burnout
A state of physical, emotional, and mental exhaustion caused by prolonged stress, often related to work.
Dysphoria
A profound state of unease or dissatisfaction, often accompanied by depression, anxiety, or agitation.
Epidemiology
The study and analysis of the distribution, patterns, and determinants of health and disease conditions in defined populations.
Task Variety
The degree to which a job or role involves a variety of different activities requiring different skills and talents, contributing to job satisfaction and motivation.
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