GRE Reading Comprehension

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Source: XDF

Every fusion reaction releases neutrinos. To test a hypothesis about the frequency of fusion reactions in the Sun, physicists calculated the number of neutrinos the Sun would produce annually if the hypothesis were correct. From this they estimated how many neutrinos should pass through a particular location on Earth. The fact that far fewer neutrinos were counted than were predicted to pass through the location would seem to prove that the hypothesis is wrong, except that--- .

Question List: 1

Which of the following, if true, most logically completes the passage?

  • A the physicists, using a different method for estimating how many neutrinos should reach the location, confirmed their original estimate
  • B there are several competing hypotheses about the frequency of solar fusion reactions
  • C there is not enough energy in the Sun to destroy a neutrino once it is released
  • D the method used to count neutrinos detects no more than approximately ten percent of the neutrinos that pass through
  • E neutrinos released in the fusion reactions of other stars also reach the Earth

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