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# SC -birds

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VP
Joined: 17 Jun 2008
Posts: 1374

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29 Jul 2008, 19:11
For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.

(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty
(D) had been found to have increased difficulties
(E) have been found to have increasing difficulties
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Its Now Or Never

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Director
Joined: 10 Sep 2007
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29 Jul 2008, 20:20
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.

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Senior Manager
Joined: 23 May 2006
Posts: 322

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29 Jul 2008, 20:41
IMO B

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VP
Joined: 17 Jun 2008
Posts: 1374

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30 Jul 2008, 02:57
abhijit_sen wrote:
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.

thank u this clears
OA is B
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Its Now Or Never

Kudos [?]: 406 [0], given: 0

VP
Joined: 17 Jun 2008
Posts: 1374

Kudos [?]: 406 [0], given: 0

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30 Jul 2008, 02:58
abhijit_sen wrote:
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.

why were found to have in option B is rejected.Please shed light on this too
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Its Now Or Never

Kudos [?]: 406 [0], given: 0

Re: SC -birds   [#permalink] 30 Jul 2008, 02:58
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# SC -birds

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