In Order to Get a Job at a Convenience Store,you

In order to get a job at a convenience store,you had to take a lie-detector test.You were asked a series of questions and you answered truthfully that you had never stolen from your employer or lied during an interview.Unfortunately,you were not hired,because measurements recorded during these questions indicated that you were lying.What is the most likely explanation for this?

A) The test revealed that you have a personality disorder.
B) The machine was faulty,and thus misread your heart rate and galvanic skin response during only these questions.
C) You may be one of those people who will test guilty even when you are innocent.
D) Polygraphs are almost always accurate,so you must have lied about something.