Last visit was: 26 Apr 2026, 14:14 It is currently 26 Apr 2026, 14:14
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
705-805 (Hard)|   Inference|      
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 26 Apr 2026
Posts: 109,894
Own Kudos:
811,434
 [8]
Given Kudos: 105,897
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,894
Kudos: 811,434
 [8]
Triumba birds reside in the polar regions and need to migrate to warme 09 Feb 2023, 10:04
Kudos
Add Kudos
8
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

85% (hard)

Question Stats:

53% (01:58) correct 47% (01:58) wrong based on 420 sessions

History

Date
Time
Result
Not Attempted Yet
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.
ShowHide Answer
Official Answer
B
User avatar
rosalynd
User avatar
Joined: 21 Mar 2017
Last visit: 04 Feb 2026
Posts: 82
Own Kudos:
64
Given Kudos: 79
Location: India
Schools: Kellogg '26 Anderson '27 Booth '27 Columbia '27 Darden '26 Fuqua '26
GMAT Focus 1: 645 Q74 V77 DI76
GPA: 3.4
Products:
GMAT Club Tests
Schools: Kellogg '26 Anderson '27 Booth '27 Columbia '27 Darden '26 Fuqua '26
GMAT Focus 1: 645 Q74 V77 DI76
Posts: 82
Kudos: 64
Triumba birds reside in the polar regions and need to migrate to warme 25 Feb 2023, 14:26
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.
Show more

Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.

So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.
User avatar
Ps1810
User avatar
Joined: 15 Dec 2022
Last visit: 27 Dec 2023
Posts: 85
Own Kudos:
62
 [2]
Given Kudos: 17
Posts: 85
Kudos: 62
 [2]
Triumba birds reside in the polar regions and need to migrate to warme 26 Feb 2023, 22:26
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
rosalynd
Bunuel
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.

Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.

So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.
Show more


Hi Rosalynd! :)
Is it not too far to assume that extinction will occur? I was thinking that C is a more probable answer ?
User avatar
radhakaur
User avatar
Joined: 10 Sep 2024
Last visit: 24 Sep 2024
Posts: 1
Own Kudos:
1
 [1]
Posts: 1
Kudos: 1
 [1]
Triumba birds reside in the polar regions and need to migrate to warme 10 Sep 2024, 05:56
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Ps1810

rosalynd

Bunuel
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.
Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.

So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.

Hi Rosalynd! :)
Is it not too far to assume that extinction will occur? I was thinking that C is a more probable answer ?
Show more
­(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction. (B talks in the likelihood, leaving the chance of extinction not happening also)
(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability. (C talks in certainty which we can't infer from the argument)
User avatar
EshaFatim
User avatar
Joined: 21 Aug 2024
Last visit: 20 Jan 2025
Posts: 78
Own Kudos:
63
Given Kudos: 464
Location: Canada
Posts: 78
Kudos: 63
Triumba birds reside in the polar regions and need to migrate to warme 13 Sep 2024, 09:23
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi Bunuel
Could you please shed some light for a better understanding of why it is B, and not D?

Because they both seem too close to each other. I was validating option D for the birds won't be able to fly to warm places as their ability to fly will highly likely diminish over time. So their way out will be no more to fly to warm places and to develop habitats to live in polar regions during winter. Otherwise, extinction will take place.

I know option D doesn't vividly talk about genetic changes. However, option B seemed too timid as it just accused the genetic changes for the birds' extinction without proper reasoning. In contrast, the reasoning seemed more explanatory in option D where it explained how the inability to fly can lead to extinction.

Am I missing something here?
User avatar
harshchougule
User avatar
Joined: 26 Sep 2023
Last visit: 21 Feb 2026
Posts: 26
Own Kudos:
11
Given Kudos: 25
Posts: 26
Kudos: 11
Triumba birds reside in the polar regions and need to migrate to warme 14 Sep 2024, 00:23
Kudos
Add Kudos
Bookmarks
Bookmark this Post
rosalynd
Bunuel
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.

Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.

So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.
Show more
So whats the difference between B and D?
User avatar
Ggt1234
User avatar
Joined: 26 Apr 2024
Last visit: 10 Apr 2026
Posts: 24
Own Kudos:
8
Given Kudos: 102
Posts: 24
Kudos: 8
Triumba birds reside in the polar regions and need to migrate to warme 07 Dec 2024, 04:20
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Until you receive an expert reply, here is something similar to what I believe you will hear.

So we know:
1. These birds need to get out the polar regions in the winter.
2. Due to genetic changes, their flying capabilty is declining
3. This decline will continue further.

what we do not know:
1. That this decline has already made it impossible for any of the birds to complete their journey back and forth. (A and C are out)
2. What ways there are for them to overcome this genetic liabilty.

Had B not been there, D would've been the clearer answer. But when B comes in, it fits argument better. According to the argument, the birds got to migrate. If not due to their genetic change, they could die out. Which his what B says.
Quote:
rosalynd
Bunuel
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.

Which of the following statements is best supported by the passage above?

(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.

(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.

(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.

(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.

(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.

Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.

So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.
So whats the difference between B and D?
Show more
Moderators:
GMATNinja
GMAT Club Verbal Expert
7391 posts
AbhishekP220108
506 posts
bhanu29
361 posts