Phones While Driving; CR

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madhukumar_v: Senior | Next Rank: 100 Posts; Posts: 75; Joined: Thu Oct 23, 2008 4:25 am; Thanked: 6 times; GMAT Score:620

by madhukumar_v » Fri Apr 16, 2010 1:39 pm

Politician: The bill that makes using car phones while driving illegal should be adopted. My support of this bill is motivated by a concern for public safety. Using a car phone seriously distracts the driver, which in turn poses a threat to safe driving. People would be deterred from using their car phones while driving if it were illegal to do so.

The argument's main conclusion follows logically if which one of the following is assumed?

(A) The more attention one pays to driving, the safer a driver one is.
(B) The only way to reduce the threat to public safety posed by car phones is through legislation.
(C) Some distractions interfere with one's ability to safely operate an automobile.
(D) Any proposed law that would reduce a threat to public safety should be adopted.
(E) Car phone use by passengers does not distract the driver of the car.

Source: Beat The GMAT — Critical Reasoning | Fri Apr 16, 2010 1:39 pm

grockit_andrea: GMAT Instructor; Posts: 357; Joined: Wed Aug 12, 2009 8:31 pmFollowed by: 7 members; Thanked: 128 times

by grockit_andrea » Fri Apr 16, 2010 2:19 pm

I would say that the answer here is C. Choices A, B, and D are too strong to be appropriate assumptions here, and choice E is irrelevant. If choice C were not true, and there were no distractions that would interfere with the ability to safely operate an automobile, then a bill to make car phone use illegal based on the idea that it is distracting wouldn't have any impact on safety.

EDITED TO ADD: I see my mistake here; I chose a necessary assumption, and the question asks for a sufficient one. D makes sense in that context.

Last edited by grockit_andrea on Sat Apr 17, 2010 4:21 am, edited 1 time in total.

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madhukumar_v: Senior | Next Rank: 100 Posts; Posts: 75; Joined: Thu Oct 23, 2008 4:25 am; Thanked: 6 times; GMAT Score:620

by madhukumar_v » Fri Apr 16, 2010 5:01 pm

Sorry Andrea, the answer is not C.

hachette: Junior | Next Rank: 30 Posts; Posts: 11; Joined: Thu Apr 15, 2010 6:48 am; Thanked: 1 times

by hachette » Fri Apr 16, 2010 10:57 pm

madhukumar_v wrote:Politician: The bill that makes using car phones while driving illegal should be adopted. My support of this bill is motivated by a concern for public safety. Using a car phone seriously distracts the driver, which in turn poses a threat to safe driving. People would be deterred from using their car phones while driving if it were illegal to do so.
The argument's main conclusion follows logically if which one of the following is assumed?

(A) The more attention one pays to driving, the safer a driver one is.
(B) The only way to reduce the threat to public safety posed by car phones is through legislation.
(C) Some distractions interfere with one's ability to safely operate an automobile.
(D) Any proposed law that would reduce a threat to public safety should be adopted.
(E) Car phone use by passengers does not distract the driver of the car.

If the last sentence is the main conclusion then answer should be B. But in other forums D is mentioned as OA.

sumanr84: Legendary Member; Posts: 758; Joined: Sat Aug 29, 2009 9:32 pmFollowed by: 2 members; Location: Bangalore,India; Thanked: 67 times

by sumanr84 » Fri Apr 16, 2010 11:51 pm

madhukumar_v wrote:Politician: The bill that makes using car phones while driving illegal should be adopted. My support of this bill is motivated by a concern for public safety. Using a car phone seriously distracts the driver, which in turn poses a threat to safe driving. People would be deterred from using their car phones while driving if it were illegal to do so.

The argument's main conclusion follows logically if which one of the following is assumed?

(A) The more attention one pays to driving, the safer a driver one is.
(B) The only way to reduce the threat to public safety posed by car phones is through legislation.
(C) Some distractions interfere with one's ability to safely operate an automobile.
(D) Any proposed law that would reduce a threat to public safety should be adopted.
(E) Car phone use by passengers does not distract the driver of the car.

My pick is C.
Conclusion is : Using a car phone poses a threat to safe driving.
for this conclusion to be true, assumption has to be that of C.

I am on a break !!

Phirozz: Master | Next Rank: 500 Posts; Posts: 232; Joined: Sun Feb 28, 2010 10:47 pm; Thanked: 10 times

by Phirozz » Fri Apr 16, 2010 11:52 pm

IMO D.

B C and E are out of scope.

A is a close contender but it cannot be the answer because our main conclusion is ''bill should be adopted''
So D is clearly the answer.

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