In King and Snook's Research on the Use of Reid

In King and Snook's research on the use of Reid techniques and other influence tactics and coercive strategies, it was found that:

A) about 50 percent of the Reid techniques were present in the interrogations analyzed.
B) the more techniques and influence tactics used, the more likely police were to get partial or full confessions.
C) defendants have become more sophisticated because of television dramas and are less influenced by coercion.
D) there was no relationship between the amount or type of tactic used and the outcomes of the interrogations.