The answer is the DEA, or Drug Enforcement Administration. This department deals with drug-related illegal activity.
An independent variable is a variable that can stand by itself. It can be predefined or ultimately just stand alone.
The given situation represents the example of a clinical/case study of the research method.
<h3>What is a clinical/case study?</h3>
A clinical case study refers to the case study where the doctors share the cases of patients that are not common or not explained before. In this, the permission of the patient should be required for writing the report on the clinical case.
Hence, we can conclude that The given situation represents the example of a clinical/case study of research method.
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<span>Across nearly seven million years, the human brain has tripled in size, with most of this growth occurring in the past two million years.</span>
