Moderate

The most appropriate name for the polygraph is:

Correct answer: B. arousal detector

  • A. lie detector
  • B. arousal detector
  • C. mind reader
  • D. guilt meter

Explanation

A polygraph records physiological arousal indicators such as heart rate, respiration, and skin conductance; it cannot directly detect lies. Therefore, arousal detector is more scientifically accurate than lie detector or guilt meter.

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