An investigative tool gaining considerable popularity with law enforcement agencies is the voice stress analyzer (VSA). Which statement below is true of this technology?
A) The admiration of the VSA test requires lengthy training similar to the polygraph.
B) The VSA detects, measures, and displays changes in the voice print frequency.
C) Like the polygraph, the VSA test requires "yes" or "no" answers.
D) None of the statements above is true regarding VSA.
Answer: B
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