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38. The author italicizes the word something in line 18 most likely to emphasize the:

  • F. great skepticism with which critics regard Frank and Sigwarth’s new evidence.

  • G. remaining uncertainty about what exactly is bombarding Earth.

     

  • H. lack of doubt among scientists about the small- comet theory’s practical value.

     

  • J. concern among scientists about the usefulness of Frank and Sigwarth’s methods of collecting evidence