Tom operates an illegal drug-running operation and incurred the following expenses: 
Which of the above amounts reduces his taxable income?
Definitions:
Syndrome
A group of symptoms that consistently occur together or a condition characterized by a set of associated symptoms.
Participant Observer
A research method in which the researcher becomes actively involved in the group or situation being studied while also observing it.
DSM-5
The Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, an authoritative guide for diagnosing and classifying mental disorders.
Reliability
The extent to which an assessment tool produces stable and consistent results over time.
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