The first artificial system of classification was developed by Aristotle, not Linnaeus, Hooker, or Bentham. Aristotle classified plants into herbs, shrubs, and trees based on gross morphological features. Linnaeus later developed the sexual system of classification based on stamens and carpels, while Hooker and Bentham worked on natural systems. Since none of the named scientists used the first artificial classification system, 'None of the above' is correct.