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# Researchers at Cornell University have demonstrated that

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Director
Joined: 26 Sep 2005
Posts: 567

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Location: Munich,Germany
Researchers at Cornell University have demonstrated that [#permalink]

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27 Jun 2006, 19:21
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Researchers at Cornell University have demonstrated that homing pigeons can sense changes in the earthâ€™s magnetic field, see light waves that people cannot see, detect low-frequency sounds from miles away, sense changes in air pressure, and can identify familiar odors.

(A) sense changes in air pressure, and can identify familiar odors
(B) can sense changes in air pressure, and can identify familiar odors
(C) sense changes in air pressure, and identify familiar odors
(D) air pressure changes can be sensed, and familiar odors identified
(E) air pressure changes are sensed, and familiar odors identified

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VP
Joined: 07 Nov 2005
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Location: India

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27 Jun 2006, 20:10
I posted this question some days back.
Straight C.

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Manager
Joined: 12 May 2006
Posts: 116

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27 Jun 2006, 21:51
its C like a mother-----..

Pardon my excitement, but it has been awhile since I have caught a ll'ism in the forum. Although, this one is quite blatant...

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Director
Joined: 26 Sep 2005
Posts: 567

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Location: Munich,Germany

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27 Jun 2006, 21:58
OA is C.

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Manager
Joined: 16 Apr 2006
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27 Jun 2006, 22:04
Yes it should be C

In a series of two or more elements, what u put on #2 determines on the remaining elements..
Ex:I like to swim,to run and to dance.
I like to swim,run and dance

are correct.

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CEO
Joined: 21 Jan 2007
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Location: New York City

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23 Jul 2007, 01:06
Yes it should be C

In a series of two or more elements, what u put on #2 determines on the remaining elements..
Ex:I like to swim,to run and to dance.
I like to swim,run and dance

are correct.

Yes. Between A & C, A has can, which is a modal verb that changes the certainty of the stem. This is against what GMAT rules, so C is correct.

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GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5032

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Location: Singapore

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23 Jul 2007, 01:44
'can' in A and B is redundant
D,E -> awkward sentences.

C is best.

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Director
Joined: 14 Feb 2005
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Location: New York

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18 Oct 2007, 09:17
Quote:

Yes. Between A & C, A has can, which is a modal verb that changes the certainty of the stem. This is against what GMAT rules, so C is correct.

further explanation about modal verb plz

tks

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Senior Manager
Joined: 06 Aug 2007
Posts: 360

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18 Oct 2007, 15:08
Would go with C. only one can is enough - no need to repeat the word

X can do a, b, c and d

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Re: SC:Pigeons   [#permalink] 18 Oct 2007, 15:08
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# Researchers at Cornell University have demonstrated that

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