Answer:
D The author mentions guilt as a potential deterrent to acting unethically, but based on crime statistics and recently published studies (led by Nicole Ruedy). that theory is incomplete.
Explanation:
According to the article, Is There A Cheater's High by Romeo Vitelli, the author describes the effects of guilt when a person decides to act unethically and looked at various factors to see if there was a type of "high" cheats or unethical people feel when they perform such acts and get away with it.
Therefore, the option that best summarizes why the author dismisses the concept of guilt in behaviour is option D.