In Order to Employ the Guilty-Knowledge Technique,the Polygrapher Needs to

Multiple Choice

In order to employ the guilty-knowledge technique,the polygrapher needs to

A) also question a control suspect.
B) ask pointed questions.
C) have a piece of information about the crime that is known by the guilty party but not by any of the other suspects.
D) have a piece of information that is known by all the suspects but nobody else.
E) record basal skin conductance levels.