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#9 - Must Be True, Point at Issue

ay514
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Hello,

I am having a hard time understanding why B is a better choice than A. I can see why B would have the authors disagreeing but I can also see a disagreement between the two authors over the statement made in answer choice C. Please help me clear my confusion Thank you!!
ay514
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Sorry, I meant why B is a better choice than C!
Dave Killoran
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Answer choice (B) and (C) can both be tough answer choices, and you typically see as many people choose (C) as (B).

Because you can already see why (B) would contain a disagreement, I'll focus on answer choice (C). The question stem is in the Point at Issue style, so you need a statement where one author says, "I agree" and the other author says, "I disagree." With that in mind, isolate passage A and ask yourself what the author of Passage A says about the statement in answer choice (C). The author says nothing really about the topic, and thus the author of Passage A cannot be said to agree or disagree with the statement in answer choice (C). Thus, (C) cannot be the correct answer choice.

The reason (C) is attractive is because the author of Passage B seems to attribute that view to the purple loosestrife control practitioners, and then sets himself/herself up as opposed to that view. However, that doesn't tell you what the author of Passage A actually thinks, and so (C) is wrong.

The key in Point at Issue-type questions is to know what each author would say about the statement in question. If you don't know for sure, the answer choice cannot be correct.

Does that help? Please let me know. Thanks!
Dave Killoran
PowerScore Test Preparation
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ay514
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Thank you so much! That was really helpful! :)
brcibake
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Could you explain why B is wrong? I completely ruled that out.
Eric Ockert
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Author A speaks of "serious reductions in waterfowl and aquatic furbearer productivity in Lines 11-12. This shows that he would agree that the threat posed by purple loosestrife on them is serious.

Author B, on the other hand, mentions how the threat posed by purple loosestrife on furbearers has been discussed at great length, but goes on to say "none of the species highlighted can be considered threatened in North America" in Lines 55-58. This would show that he disagrees with the claim that the threat is serious.

Since one of these authors (Author A) agrees with answer choice B and one author (Author B) disagrees, you have met the Agree/Disagree Test for Point at Issue questions.
Eric Ockert
PowerScore LSAT/GMAT/SAT Instructor