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# Migraine, the most debilitating common form of headache,

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SVP
Joined: 03 Feb 2003
Posts: 1603

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03 Jul 2003, 07:51
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Migraine, the most debilitating common form of headache, afflicts perhaps 18 million Americans, who collectively lose 64 million workdays a year, and they cost the nation \$50 billion in medical expenses and lost work time.

(A) year, and they cost the nation \$50 billion in medical expenses and lost
(B) year and thus cost the nation \$50 billion in medical expenses and lost
(C) year, so as to cost the nation \$50 billion in medical expenses and lost
(D) year that costs the nation \$50 billion in lost medical expenses and
(E) year, which thus cost the nation \$50 billion in lost medical expenses and

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Senior Manager
Joined: 22 May 2003
Posts: 329

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Location: Uruguay

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03 Jul 2003, 19:55
A) "they" is not properly referenced

D and E) "lost medical expenses" rules them out

From B and C I would choose B as well because it sound simpler... does anybody have a better reason for choosing B over C ?

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GMAT Instructor
Joined: 07 Jul 2003
Posts: 769

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Location: New York NY 10024
Schools: Haas, MFE; Anderson, MBA; USC, MSEE

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07 Jul 2003, 03:52
I vote B.

A, C, and E are incorrect because the word "cost" refers back to the word "migraine" and does not agree.

D and E are incorrect because the of "lost medical expenses".

B is correct because it doesn't put a comma after the word "year" thus the phrase "which costs.... year" is no longer parenthetical to "Americans" and the word "cost" now refers back to "Americans" and now agrees.
_________________

Best,

AkamaiBrah
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993

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Senior Manager
Joined: 23 Sep 2003
Posts: 292

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Location: US

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01 Jun 2004, 13:26
How is B correct?

How can you say that "Migraine....afflicts....and cost the nation"?

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SVP
Joined: 30 Oct 2003
Posts: 1788

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Location: NewJersey USA

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01 Jun 2004, 13:53
hi ndidi04,

I think there is a typo in B->. thus cost(s) the nation If this correction is done then B is the best answer.

Anand.

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01 Jun 2004, 13:53
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