C

IMO C. what is the OA?

I Will go with B

what is OA?
_________________

Success is my Destiny

Hey All,

Real confusion here, and it is a tough question! People have already written everything that I would write, so I'm just going to pick a side and explain it.

In B, the issue is that people are biased so can't make an unbiased decision. This is not what happens in any of the other answer choices. Particularly the original; the issue isn't that they are so tired they can't tell they're tired, it's simply that they can't tell their tired. Just as drunk people can't tell they're drunk, workers can't tell the noxious fumes are affecting them, and everything else.

Making C the answer, because the fumes haven't caused a negative effect yet, appears way too subtle for me. The idea that people are biased against something is far more of an outlier. I believe the answer is B. Who wants to argue?

-tommy
_________________

Tommy Wallach | Manhattan GMAT Instructor | San Francisco

Manhattan GMAT Discount | Manhattan GMAT Reviews

Hey Praveen,

Interesting logic, but it's made me come to dislike the writing of this question. My guess is that the answer is C here, only because that would be the likeliest based on how these questions are written (i.e. the hope is you'll pick B, because it SOUNDS the most different). And I do see what you're saying, that the idea could be people become unable to make an intelligent decision because of some bias.

HOWEVER, the central premise around which you built this argument doesn't exist either in the stem or the answer choice, so it cannot be the issue. If that IS the issue around which the question is built, it's a deeply flawed question.

In the stem, it never says the drivers are not aware of being sleep deprived. In fact, the idea seems to be that they know they are sleep deprived, but they DO NOT understand the consequences of that fact, and drive anyway. In the example you listed, the workers may or may not be aware of the fact that they are working with noxious fumes. The important part is that they ignore the consequences of that fact, and continue working. That sounds EXACTLY like the stem, not different at all. Noxious fumes are poisonous, and to that extent, they likely would have the same effect as "being faint" would (i.e. you no longer can make an intelligent decision about your safety).

By this logic, B is still the most unlike the stem. Instead of some outside force causing the bias (schizophrenia/blood donation/fumes/alcohol/sleep deprivation), it's merely an internal bias against something (math).

To summarize, I would guess the writer of this question wants the answer to be C, because B is such an obvious trap (because it LOOKS so different). But I don't think it's well crafted enough to be convincing in that way, because B does differ in a fundamental way from the stem.

Argument?

-tommy

P.S. Also, this question was listed as a Main Point Question, which it isn't. If that was part of the way it was presented on the page it came from, it would lead me to believe even more deeply it's a flawed question.
_________________

Tommy Wallach | Manhattan GMAT Instructor | San Francisco

Manhattan GMAT Discount | Manhattan GMAT Reviews

Same to you Praveen! It was your extended take on the question that made me really consider it deeply. Well done!

-t
_________________

Tommy Wallach | Manhattan GMAT Instructor | San Francisco

Manhattan GMAT Discount | Manhattan GMAT Reviews

i will go with b
_________________

Please do consider giving kudos if you like my posts

I would go with B , in all other choices there is change due to some external stimuli except B where one just hates mathematics
_________________

Run towards the things that make you uncomfortable daily. The greatest risk is not taking risks
http://gmatclub.com/forum/from-690-to-730-q50-v38-97356.html

Another vote for B.

Try to rephrase each choice according to the structure of "Most drivers think they can tell when they are about to fall asleep, but they cannot."

You can rephrase for choice A, C, D and E. But not B.
A: Most people think they can tell when they are too drunk to drive, but they cannot
C: Most industrial workers think they know when they should stop working, but they cannot.
D: Most people who have just donated blood think they can tell when they are ready to walk out, but they cannot.
E: Most people who are being treated for schizophrenia think they can tell when they can halt their medical treatments, but they cannot.

Can you do that with B?