IT CAN BE INFERRED FROM THE PASSAGE THAT THE AUTHOR THINKS FAD DIE...

58. It can be inferred from the passage that the author thinks fad diets in generalA. are always bad for you because they contain too much fat.B. can be unhealthy in the long term and have too little variety.C. are effective and safe if used under a doctor's supervision . D. usually result in long-term weight loss.