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Danish234
I still don't understand how option D is wrong.

Let me explain how I think of option D.

The conclusion says that the insincerity is sign of wel functioning Government.

And option D says that the government policies could turn out to be detrimental to functioning of the government. In this scenario if the politicians stayed insincere and the bad policy is passed then the functioning of the government will be compromised and thus we can say because the politicians stayed insincere the government is not functioning well and thus weaken the argument that insincerity is not good for the functioning of the government.

Please tell me what mistakes have i made in coming to this conclusion because I cannot see in which way this option could be wrong and thank you in advance

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To see why (D) is wrong, let's start by breaking down the passage.

The argument concludes that "the very insincerity that people decry shows that our government is functioning well." In other words, the fact that politicians are behaving insincerely demonstrates that the government is functioning well. Why? Because sincerity would make necessary political compromises more difficult.

Let's now consider (D):

Quote:
Which of the following, if true, most seriously undermines this reasoning?

(D) A political party's policies could turn out to be detrimental to the functioning of a government.
Does this weaken the conclusion that insincerity shows that the government is functioning well? Well, that would require a few leaps.

First, we'd need to assume that compromise allows a political party to enact its policies. Yet we really don't know if that's the case -- perhaps compromise would impede a political party from enacting its policies, since they might have to settle for some compromise that was different from their preferred policy? Either way, we don't have a direct link from "compromise" to a party enacting its policies.

Second, we'd need to assume that the enacted policies actually are detrimental. But notice the argument only says the policies "could turn out to be" detrimental -- not that they are always detrimental.

For both those reasons, (D) does a pretty weak job of undermining the reasoning, and we can eliminate it.

I hope that helps!
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avigutman

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Hi avigutman - what if (A) was saying this instead

Quote:

(A-original) Achieving political compromises is not all that is necessary for the proper functioning of a government.

(A-variant) Achieving political compromises is not all that is necessary for the proper functioning of a government.
I believe (A-variant) too would weaken the argument.

If Achieving political compromises is NOT NECESSARY for the proper functioning of a government - i think that would weaken the conclusion
Agreed. jabhatta2. The argument assumes that the proper functioning of a government requires only political compromises.
(A-original) weakens that assumption directly.
(A-variant) weakens that assumption as well (arguably even more so than (A-original) does.)
­avigutman , Actually I disagree Avi. 

The conclusion is essentially political compromises show (are sufficient for) the well-functioning of a government. This doesn't mean that they have to be necessary. They could be not necessary and sufficient at the same time. (Maybe there are other ways of making a government function well without any political compromises). But if they were not all that is necessary (original option-A), this effectively means that they are not sufficient and so our conclusion is weakened.
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PReciSioN
­avigutman , Actually I disagree Avi. 

The conclusion is essentially political compromises show (are sufficient for) the well-functioning of a government. This doesn't mean that they have to be necessary. They could be not necessary and sufficient at the same time. (Maybe there are other ways of making a government function well without any political compromises). But if they were not all that is necessary (original option-A), this effectively means that they are not sufficient and so our conclusion is weakened.
@PReciSioN The argument is completely lacking any connection between the difficulty level of achieving politically necessary compromises and the proper functioning of a government. That connection is assumed. So, any answer choice that undermines that connection is undermining the reasoning. ­
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avigutman

PReciSioN
­avigutman , Actually I disagree Avi. 

The conclusion is essentially political compromises show (are sufficient for) the well-functioning of a government. This doesn't mean that they have to be necessary. They could be not necessary and sufficient at the same time. (Maybe there are other ways of making a government function well without any political compromises). But if they were not all that is necessary (original option-A), this effectively means that they are not sufficient and so our conclusion is weakened.
@PReciSioN The argument is completely lacking any connection between the difficulty level of achieving politically necessary compromises and the proper functioning of a government. That connection is assumed. So, any answer choice that undermines that connection is undermining the reasoning. ­
­I see avigutman . Thanks for the explanation!!
 
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Hi experts KarishmaB GMATNinja

Can we reject option C on the basis of following reasoning?
"Voters often judge politicians by criteria other than the sincerity with which they express their views."
Others factors = Z
In a nutshell, option C means that voters also consider Z for their opinion on politicians and ultimately, the well functioning of government.

The conclusion says that X leads to Y where X is "insincerity that people decry" and Y is "government is functioning well", this means that X is sufficient for Y.

By knowing that Z can also lead to Y doesn't affect out confidence in the conclusion X --> Y.
Please correct me if my logic is wrong somewhere.
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agrasan
Hi experts KarishmaB GMATNinja

Can we reject option C on the basis of following reasoning?
"Voters often judge politicians by criteria other than the sincerity with which they express their views."
Others factors = Z
In a nutshell, option C means that voters also consider Z for their opinion on politicians and ultimately, the well functioning of government.

The conclusion says that X leads to Y where X is "insincerity that people decry" and Y is "government is functioning well", this means that X is sufficient for Y.

By knowing that Z can also lead to Y doesn't affect out confidence in the conclusion X --> Y.
Please correct me if my logic is wrong somewhere.

Option (C) is incorrect because it is irrelevant. Our argument is discussing what shows the govt is functioning well.
Option (C) talks about how voters judge the politicians, on what basis. That is irrelevant. We are not interested in the opinions of the voters. The first line of the argument mentions it only to introduce the topic. The actual argument is not about that at all.
The point is whether the politician's insincerity (taken to exist) shows that the govt is functioning well.

Focus on the crux of the argument to save time in CR.
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