A polygraph (lie detector) works by: ________?

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AAll of the above.

BMonitoring physiological indices of autonomic arousal.

CMonitoring the person’s facial expressions.

DDirectly assessing the truthfulness of a person’s statements.

Correct answer

B. Monitoring physiological indices of autonomic arousal.

Explanation

The correct answer is Monitoring physiological indices of autonomic arousal..

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