One Problem with the Use of the Polygraph for Lie

Multiple Choice

One problem with the use of the polygraph for lie detection is that

A) polygraph assessments are more expensive than brain scans.
B) anxiety,irritation,and guilt feelings all prompt similar physiological reactivity.
C) emotions involve expressive behaviors as well as autonomic nervous system arousal.
D) innocent people are presumed to be guilty at the very beginning of any lie detector test.