The Major Criticism of Research Attempts to Replicate the Conduct

The major criticism of research attempts to replicate the conduct of actual criminal uses of the polygraph is that:

A) it may be unethical.
B) it is impossible to duplicate what a test subject and what a criminal feels they have to lose in being caught.
C) it is difficult to find experimental subjects who have experience in the use of counter measures.
D) researchers do not have access to enough funds and incentives to entice subjects not to get caught.