Which Statement Is TRUE of the Political Era of Policing

Which statement is TRUE of the political era of policing?

A) The police during the political era were organized to protect and serve the public.
B) The political era of policing was a brief but progressive time in policing history.
C) Although the political era of policing lasted about 100 years, little changed during that time.
D) The political era was structured around America's move to Prohibition.