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#23224
Complete Question Explanation

Parallel Reasoning. The correct answer choice is (D)

This Parallel question is an argument about a definition. The author gives examples of two types of "games"—one type that has rules and competition and another type that does not—and then concludes that rules and competition are not essential to the definition of "game." Basically, the argument is that not all types of this thing have these characteristics, so they are not essential to it.

Answer choice (A): Doubling the conclusions demonstrates that this answer choice is concluding that one thing is essential and another is not, which is a different conclusion. Also, applying the Premise Test demonstrates that this answer choice is dealing with two definitions—a glutton and a gourmet—not one.

Answer choice (B): Again, comparing the conclusions demonstrates that the authors arrive at different points. While the stimulus is concluding that something is not essential, this answer choice leaves the option between two contradictory conclusions open. If she concluded that eating meat is not essential to being a bear, this might be a stronger answer, but she leaves open the possibility that taxonomists are wrong: another possibility does not exist in the stimulus.

Answer choice (C): Immediately, you should notice that this conclusion is "not essential" and the stimulus conclusion is "is essential" and eliminate this answer. After that, this is a humorous answer because apparently the shape of a dog is what defines it as being a dog and eating meat shapes the dog a certain way. We are not given two types of dogs, one with a characteristic and one without. We are simply told how dogs are (carnivorous) and why they must be that way.

Answer choice (D): This is the correct answer choice. This answer choice gives two types of automobiles — some that are gasoline fueled and four wheeled and others that do not have either of these characteristics. Because both of these types are still called automobiles, the conclusion, which matches the conclusion in the stimulus, is that these two characteristics are not essential to being an automobile. Don't be thrown off by the "most" as compared to the "some" in the stimulus. The reasoning still matches because two types are shown to exist.

Answer choice (E): This answer choice is not comparing two types of one thing, but talking only about Montreal. Simply because other cities are cosmopolitan and vitality as well does not mean they are not essential qualities of Montreal. The author would have to show another type of Montreal (which does not exist) to match the stimulus.
 jbrown1104
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#47431
Hey PS!

So I got the correct answer but wanted to make sure I understood why the incorrect answers were incorrect. That being said, for answer choice C I eliminated because the argument failing the premise test. I see in your explanation you provided two reasons the answer is incorrect, the premises and the conclusion. However the conclusion simply says "not essential" but the language itself (i.e. level of certainty) is similar. After going over the section, I thought having the logical opposite of a word was not sufficient grounds to eliminate the conclusion. So could you explain why the conclusion in this answer choice was eliminated.

Thanks!
~JB
 Adam Tyson
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#48082
Happy to, JB! You're right that "not essential" and "essential" both have the same degree of certainty, in that the author is, in both cases, 100% certain of the truth of his claim. There is nothing about probability or possibility there, no opinion about what should or shouldn't be the case, just "this is true". But there's more to paralleling the conclusion than just the degree of certainty - that's just one element of that test! Another is whether these two conclusions match each other in a more abstract, structural sense?

That's where answer C goes off the rails. Essential means something is necessary - you have to have it. Not essential means something is not necessary - you don't have to have it, it's optional. "You need it" and "it's optional" are very different claims from a structural, abstract perspective! We may be certain about both, but the things we are certain of are very, very different types of things.

Imagine a slightly different scenario, where in the stimulus we are absolutely certain that something will happen, and another where we are absolutely certain that something would be good. Very different! Certainty alone isn't enough, although it is important.

Good job getting this one right!

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