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#27391
Complete Question Explanation
(See the complete passage discussion here: lsat/viewtopic.php?t=50)

The correct answer choice is (E)

This question stem asks for the Main Point of the passage. If we are to prephrase this answer, the correct choice should likely allude to theories about the LHB and the emphasized need for further exploration.

Answer choice (A): While this answer choice may be consistent with the information in the passage, the main point was not simply to provide a definition of the LHB, so this choice is incorrect.

Answer choice (B): Although the stimulus provides that further evidence is needed to determine the pervasiveness of the LHB, the author never makes the assertion in this choice, so this answer should be eliminated.

Answer choice (C): While it seems that our perspective continues to grow clearer with each new piece of evidence, the author of the passage does not assert that a clear picture will emerge “soon.”

Answer choice (D): This answer choice involves the stimulus’ third theory, discussed at the end of the second paragraph, but this does not reflect the main point of the passage, so this answer choice is incorrect.

Answer choice (E): This is the correct answer choice. Although there has been new evidence uncovered which enables us to develop our understanding of the LHB, further evidence still needs to be gathered, as prephrased above.
 Sdaoud17
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#9080
Can you tell me why E is the Answer and Not A ? I feel I totally Misunderstand reading the passage ?

Thank you
 Nikki Siclunov
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#9095
(A) is consistent with the passage, but the main point is not simply to provide a definition of the LHB.

(E) is correct, and can be proven by reference to all three paragraphs of the passage, especially the final paragraph. THe author introduces the reader to the concept of LHB (paragraph 1), discusses the theories which deal with differing perspectives on it (paragraph 2), and then introduces evidence to support the notion that LHB was widespread (paragraph 3). The main point has one caveat, namely the need for further evidence to substantiate the theory that LHB extended throughout the solar system. Answer choice (E) provides an ideal summary of this position.

On an entirely unrelated note, I hope you aren't using the December 2006 test as a practice test, because many of the questions in it (including this passage) are scattered throughout your homework for the full-length course. The passage on LHB, for instance, can be found in Lesson 10. When choosing which tests to do for practice, stick with the ones listed in the Online Student Center under Practice Tests.
 Sdaoud17
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#9100
Thats Great Thank you
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 queenbee
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#97404
Hi
I felt like (A) was more comprehensive of the entire passage though it didnt reference the last paragraph. (E) only references the last paragraph. Is there another queue that would help deter A over E?
Thank you
 Luke Haqq
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#97477
Hi queenbee!

Happy to address answers (A) and (E) in this question.

First, even if (A) were more comprehensive, that doesn't necessarily mean that it conveys the author's main point. As you note, however, (A) does't get to the final paragraph, so in the end it's not quite comprehensive in describing the passage.

Second, that final paragraph is key. The first paragraph introduces a phenomenon (late heavy bombardment of the moon) and notes its "consequences for the history of Earth" (line 10). The second paragraph presents "[v]arious theoretical approaches" (line 12). The final paragraph uses new evidence to argue for the superiority of one interpretation over the other approaches. Not all reading comprehension passages will contain a clear expression of an argument by the author. This one does, and it's contained in the last paragraph.

Given that we know that the passage contains an argument by the author, this highlights a clear distinction between answer choices (A) and (E). Namely, answer choice (A) is far more descriptive rather than argumentative. It makes a statement, but not one that involves the author's view or interpretation of evidence. Answer choice (E), by contrast, is framed in terms of an argument about new evidence.

Finally, answer choice (E) does ultimately address all the paragraphs. It involves LHB as a phenomenon the consequences of which aren't fully understood (paragraph 1), it refers to "competing theories of the LHB" (paragraph 2), and it refers to new evidence that might favor one theory over the others (paragraph 3).

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