Police Interrogations Are Often Conducted in Small, Bare, Soundproof Rooms

Police interrogations are often conducted in small, bare, soundproof rooms so that

A) distractions will be minimized and the suspect will be better able to focus on the interrogation.
B) suspects feel socially isolated and uncomfortable.
C) police operating costs will be kept to a minimum.
D) other police officers will not become biased against particular suspects.