I'm pretty certain A is correct
Population is the right answer
B. Law enforcement as there are state agencies like DPS and federal like CIA/FBI
The correct answer is distress.
While some types of stress (eustress) can actually boost performance and optimal functioning, other types of stress have a negative and harmful influence on individuals. Distress refers to when the experience of stress is debilitating and takes a toll on an individual. An example of distress would be a situation in which a person suffers from unpleasant circumstances for a prolonged period of time, and it starts to negatively affect his or her emotional and physical health.