Why is E not the answer? I thought "innovative methods of investigation" meant the new technological advances and "the hypotheses advanced" are the new information they've found. Thank you for all the help!
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@Zahra, the biggest reason that (E) is wrong is that it says that discussing various hypotheses is the purpose of the passage while the passage deals almost entirely with methods, so the purpose of the passage can't be to discuss a variety of hypotheses.
Rossalynon September 6, 2018
Why is it C and not A? How can you tell it's an "account" of something versus a "defense?"
