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Looks simple C ..or did I fell in the trap?
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ashkrs
Looks simple C ..or did I fell in the trap?

thats what im worried about too !
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I think C too, the others seem to either weaken or are irrelevant. What's the OA?
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C

The assumption: the collision-avoidance system has more disadvantages than advantages

(C) ... will enable ... to avoid some crashes, ... will cause even more crashes.
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C. as malfunction will result in more accidents.
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C for me.

Pilots have objection towards not-fully-tested systems and anything that will show that the not-fully-tested systems are inefficient will strengthen pilots' objection.

(C) does that.
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ashkrs
Looks simple C ..or did I fell in the trap?

thats what im worried about too !

Hmm A just says device may (because of use of possible in the stem) malfunction (so the system may not work as expected) so at best neutralize the +ve effects of new systems, however C gives us a reason to believe that systems at present have problem. so C wins over!
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This appears to be a OG question. I saw it on mba.com. Here is the official explanation:

Choice C states that what the pilots think could happen is likely to happen. Thus, C is the best answer.

Choice A is inappropriate because it says nothing about the malfunctions that most concern the pilots – those that might mislead. Nor does A distinguish tested from not-fully-tested systems.

Choice B is inappropriate. The only outcome of using insufficiently tested equipment that might strengthen the pilots’ objection is an unfavorable one, but B reports on a favorable outcome.

Choice D is inappropriate because it mentions a problem that needs to be addressed whether or not the collision-avoidance systems are installed immediately.

Choice E is inappropriate because it provides no evidence that any malfunctions were of a sort to mislead pilots and cause crashes.

Can a moderator tag this question?
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JCLEONES
Airline: Newly developed collision-avoidance systems, although not fully tested to discover potential malfunctions, must be installed immediately in passenger planes. Their mechanical warnings enable pilots to avoid crashes.

Pilots: Pilots will not fly in planes with collision-avoidance systems that are not fully tested. Malfunctioning systems could mislead pilots, causing crashes.

The pilots’ objection is most strengthened if which of the following is true?


(A) It is always possible for mechanical devices to malfunction.

(B) Jet engines, although not fully tested when first put into use, have achieved exemplary performance and safety records.

(C) Although collision-avoidance systems will enable pilots to avoid some crashes, the likely malfunctions of the not-fully-tested systems will cause even more crashes.

(D) Many airline collisions are caused in part by the exhaustion of overworked pilots.

(E) Collision-avoidance systems, at this stage of development, appear to have worked better in passenger planes than in cargo planes during experimental flights made over a six-month period.


Choice C states that what the pilots think could happen is likely to happen. Thus, C is the best answer.

Choice A is inappropriate because it says nothing about the malfunctions that most concern the pilots – those that might mislead. Nor does A distinguish tested from not-fully-tested systems. Choice B is inappropriate. The only outcome of using insufficiently tested equipment that might strengthen the pilots’ objection is an unfavorable one, but B reports on a favorable outcome. Choice D is inappropriate because it mentions a problem that needs to be addressed whether or not the collision-avoidance systems are installed immediately. Choice E is inappropriate because it provides no evidence that any malfunctions were of a sort to mislead pilots and cause crashes.

I would like to add to the explanations of option A.

Pilot's reasoning is based on causality [ A ( malfunctioning) causes B (crashes)]
Now, for any causality A causes B, any option that strengthens the cause or effect alone is usually wrong.

For example:
Sleepless nights cause headaches in the morning.
This claim is not strengthened by this option:
I had a sleepless night. ( it's just a statement)
OR by
I have a headache this morning.

But if I say,

last night I did not get sleep, and I feel my head is aching today.

This option stregnthens our argument now.

Hope this explanation helps. This is as generic as it gets. It's true for any causal relationship.

Regards,
Rishav
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Quote:
Airline: Newly developed collision-avoidance systems, although not fully tested to discover potential malfunctions, must be installed immediately in passenger planes. Their mechanical warnings enable pilots to avoid crashes.

Pilots: Pilots will not fly in planes with collision-avoidance systems that are not fully tested. Malfunctioning systems could mislead pilots, causing crashes.

The pilots’ objection is most strengthened if which of the following is true?

Our airline concludes that all these new collision safety systems need to be installed ASAP because it will lead to less crashes!

The pilots are arguing that they won’t follow through unless all the machinery is tested…(because who trusts machines that haven’t had a test run? Also, I would want data too. I’m not flying a plane with 100s of passengers with a faulty system). The pilots support their conclusion by stating that malfunctions are misleading (and I don’t blame them). We need an answer choice that proves that this is true.

(A) It is always possible for mechanical devices to malfunction.
Well, if it is always possible for devices to malfunction, then the point of the full test might not even be worth it….if malfunctions happen anyway. Let’s hold it though. Coming back to this (C) is better…this discusses mechanical devices too generally. We want the distinction between the FULLY-TESTED and the NON-FULLY TESTED. And I could see the airlines using this as a justification against the pilots.

(B) Jet engines, although not fully tested when first put into use, have achieved exemplary performance and safety records.
This would actually strengthen the airline’s argument.

(C) Although collision-avoidance systems will enable pilots to avoid some crashes, the likely malfunctions of the not-fully-tested systems will cause even more crashes.
This restates the pilot’s concern.

(D) Many airline collisions are caused in part by the exhaustion of overworked pilots.
This would strengthen the airline’s argument….they’re probably use this as a justification against the pilots.

(E) Collision-avoidance systems, at this stage of development, appear to have worked better in passenger planes than in cargo planes during experimental flights made over a six-month period.
This is irrelevant. We don’t care about the distinction between the efficacy of the test on passenger v. cargo planes.
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Airline: Newly developed collision-avoidance systems, although not fully tested to discover potential malfunctions, must be installed immediately in passenger planes. Their mechanical warnings enable pilots to avoid crashes.

Pilots: Pilots will not fly in planes with collision-avoidance systems that are not fully tested. Malfunctioning systems could mislead pilots, causing crashes.

The pilots’ objection is most strengthened if which of the following is true?


(A) It is always possible for mechanical devices to malfunction.

(B) Jet engines, although not fully tested when first put into use, have achieved exemplary performance and safety records.

(C) Although collision-avoidance systems will enable pilots to avoid some crashes, the likely malfunctions of the not-fully-tested systems will cause even more crashes.(Correct)

(D) Many airline collisions are caused in part by the exhaustion of overworked pilots.

(E) Collision-avoidance systems, at this stage of development, appear to have worked better in passenger planes than in cargo planes during experimental flights made over a six-month period.
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OFFICIAL GMAT EXPLANATION

Choice C states that what the pilots think could happen is likely to happen. Thus, C is the best answer.

Choice A is inappropriate because it says nothing about the malfunctions that most concern the pilots – those that might mislead. Nor does A distinguish tested from not-fully-tested systems. Choice B is inappropriate. The only outcome of using insufficiently tested equipment that might strengthen the pilots’ objection is an unfavorable one, but B reports on a favorable outcome. Choice D is inappropriate because it mentions a problem that needs to be addressed whether or not the collision-avoidance systems are installed immediately. Choice E is inappropriate because it provides no evidence that any malfunctions were of a sort to mislead pilots and cause crashes.
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Without reading all the answer choices. C is a direct strengthener.

Posted from my mobile device
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