The Rates of Accuracy of the Polygraph Have Been Calculated

Multiple Choice

The rates of accuracy of the polygraph have been calculated using controlled lab studies and mock crimes. These rates are likely to be somewhat inflated for the following reasons, EXCEPT:

A) subjects in these studies do not have much to lose.
B) lies that subjects in these studies tell are very simple.
C) the polygraph machines used in these studies are outdated.
D) subjects in these studies have not been trained in countermeasures.