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# For some birds the sense of smell appears to play a role in

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Senior Manager
Joined: 22 Jun 2005
Posts: 360

Kudos [?]: 12 [0], given: 0

Location: London
For some birds the sense of smell appears to play a role in [#permalink]

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15 Sep 2005, 15:02
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Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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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

Kudos [?]: 12 [0], given: 0

VP
Joined: 22 Aug 2005
Posts: 1111

Kudos [?]: 124 [0], given: 0

Location: CA

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15 Sep 2005, 15:13
I will chose B.

as clause starts in present tense, to maintain tense, remove A, C, D.

Guess difficulties here may be inappropriate as we are talking about ONLY difficulty in "homing". I skipped E for this.

Kudos [?]: 124 [0], given: 0

Director
Joined: 23 Jun 2005
Posts: 838

Kudos [?]: 87 [0], given: 1

GMAT 1: 740 Q48 V42

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15 Sep 2005, 16:42
B it is!
My reasoning:
there is no supporting evidence of varying levels of difficulty, so the options with "increasing" are out. The difficulty part refers to a single action - that of homing. So, the options with difficulties are also out. I was left with B, even though the usage of verbs there reads a little odd at first.
Anand

Kudos [?]: 87 [0], given: 1

Senior Manager
Joined: 22 Jun 2005
Posts: 360

Kudos [?]: 12 [0], given: 0

Location: London

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16 Sep 2005, 02:43
OA is B

Kudos [?]: 12 [0], given: 0

16 Sep 2005, 02:43
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# For some birds the sense of smell appears to play a role in

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