unclear CR question

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unclear CR question

by Mo2men » Fri Jan 20, 2017 1:07 am
Instead of blaming an automobile accident on driver error, insurance companies should first try to figure out why the error was made by analyzing flaws in road design, automobile designs and in criteria to determine eligibility for a driver's license. Only then will the insurance companies be able to effectively issue guidelines to prevent future accidents, instead of merely punishing the incidental driver.

Which of the following is a presupposition of the argument above?

A) Driver error is not a significant factor in most automobile accidents.
B) Automobile manufacturers should be the agents who investigate automobile accidents and not insurance companies.
C) Stricter government regulation of the automobile and highway construction industries would make automobile travel safer.
D) Investigation of automobile accidents should contribute to the prevention of future accidents.
E) Most drivers who make errors in driving repeat those errors unless they are retrained.

OA: E

What is the link between the conclusion and correct assumption answer???

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by GMATGuruNY » Fri Jan 20, 2017 5:15 am
Mo2men wrote:Instead of blaming an automobile accident on driver error, insurance companies should first try to figure out why the error was made by analyzing flaws in road design, automobile designs and in criteria to determine eligibility for a driver's license. Only then will the insurance companies be able to effectively issue guidelines to prevent future accidents, instead of merely punishing the incidental driver.

Which of the following is a presupposition of the argument above?

A) Driver error is not a significant factor in most automobile accidents.
B) Automobile manufacturers should be the agents who investigate automobile accidents and not insurance companies.
C) Stricter government regulation of the automobile and highway construction industries would make automobile travel safer.
D) Investigation of automobile accidents should contribute to the prevention of future accidents.
E) Most drivers who make errors in driving repeat those errors unless they are retrained.
Plan: Insurance companies should try to figure out why the error was made.
Conclusion: Insurance companies will be able to effectively issue guidelines to prevent future accidents.

Apply the NEGATION TEST.
When the correct answer choice is negated, the conclusion will be invalidated.
unless means if not.

E, negated:
Most drivers who make errors in driving never repeat those errors even if they are not retrained.
Here, issuing guidelines about previous errors is useless -- since these errors will never be repeated -- invalidating the conclusion that such guidelines will prevent future accidents.
Since E invalidates the conclusion, E is an assumption: a statement that MUST BE TRUE for the conclusion to hold.

The correct answer is E.
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