Answer:
The answer is habituation.
Explanation:
Habituation refers to a decrease in response to a stimulus after many repetitions. The more frequent the stimulus, the faster the habituation becomes.
Habituation also occurs to adults. For example, a distracting clock sound in an office may be annoying at first, but after a few hours it will be barely noticeable.
B. Law enforcement as there are state agencies like DPS and federal like CIA/FBI
I would guess it to be 'a' as most of the country is run by the government