1

73. Given that all the choices are true, which one would  LEAST effectively introduce the subject of Paragraph 4?

 

 

 

  • A. NO CHANGE

  • B. According to researchers, the environment of a cold-loving extremophile, or psychrophile, is as extreme as that of a heat-loving thermophile.

     
  • C. Certain extremophiles, called psychrophiles, thrive in cold environments rather than hot ones.

  • D. Other types of extremophiles—cold-loving psychrophiles—have been found in temperatures as low as –17 degrees Celsius