Of the following explanations for while crime fell from 1990 to 2014 which does the Brennan Center suggest had an impact in the 1990s but not after?

Question

Quizplus · Accepted Answer

The Brennan Center suggests that the increase in the number of police had an impact on the reduction of crime in the 1990s but not after. This is because the initial surge in police numbers during the 1990s could contribute to a significant reduction in crime rates, but the effect would diminish over time as the number of police stabilized or other factors became more influential.

Of the Following Explanations for While Crime Fell from 1990