The statement "it takes a special chocolate to make everyone happy" could be considered a form of glittering generalities. Glittering generalities are vague and emotionally appealing statements that lack specific evidence or details. In this case, the ad does not provide any concrete information about the chocolate or the reasons why it would make everyone happy. It relies on the general notion that chocolate is associated with happiness, which can be viewed as a broad, appealing statement without providing specific evidence.
