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Fossils of the arm of a sloth found in Puerto Rico in 1991,

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Fossils of the arm of a sloth found in Puerto Rico in 1991, [#permalink] New post 14 Apr 2009, 18:42
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A
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D
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Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of
[Reveal] Spoiler: OA

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Re: SC - Sloth [#permalink] New post 14 Apr 2009, 21:25
E should be the answer.

what's the OA?
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Re: SC - Sloth [#permalink] New post 15 Apr 2009, 04:09
IMO E

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of --> this answer incorrectly means the sloth, not the fossil, was found in Puerto Rico in 1991
B. sloth, that they found in Puerto Rico in 1991, [color=#000000]has[/color] been dated at 34 million years old, thus making it the earliest mammal known on --> many problems: wrong verb tense, same error as (A) and thus is needless here
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of --> also the same errors as (A) & (B)
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on --> this answer wrongly mean the fossil, not the sloth, is 34 million years old. Besides, on is unidiomatic
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of[/quote] --> correct meaning, precise clause, idiomatic phrase, best choice
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Re: SC - Sloth [#permalink] New post 15 Apr 2009, 06:00
IMO C.
E makes me nervous because of use of comma, right after which. And use of made, I guess participle is better here.
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Re: SC - Sloth [#permalink] New post 15 Apr 2009, 08:02
I feel A.
Though I dint like any other choice including this one.

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of-- here it refers to Sloth
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on--> use of they
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of---> Fossils is plural
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on--> have been
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of--> found in Puerto Rico in 1991 is wrongly placed and you cannot date sloth
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Re: SC - Sloth [#permalink] New post 15 Apr 2009, 18:41
I think option D is the only grammatically correct here.
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Re: SC - Sloth [#permalink] New post 15 Apr 2009, 20:11
I think the OA is wrong. What is the source of it?
And could you please explain choice C?

IMO, 'fossils' ... 'was dated' in choice C cannot be correct - mismatch by number.
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Re: SC - Sloth [#permalink] New post 16 Apr 2009, 11:50
clearly D

fossils---> "have"
aslo sloth ---> used to refer to sloth
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Re: SC - Sloth [#permalink] New post 17 Apr 2009, 10:09
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Minheequang wrote:
IMO E

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of --> this answer incorrectly means the sloth, not the fossil, was found in Puerto Rico in 1991
B. sloth, that they found in Puerto Rico in 1991, [color=#000000]has[/color] been dated at 34 million years old, thus making it the earliest mammal known on --> many problems: wrong verb tense, same error as (A) and thus is needless here
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of --> also the same errors as (A) & (B)
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on --> this answer wrongly mean the fossil, not the sloth, is 34 million years old. Besides, on is unidiomatic
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of
--> correct meaning, precise clause, idiomatic phrase, best choice
[/quote] Fossils ...was is not correct here.

I think its D. Cannt be C as fossils of the and not the sloth was not found in puerto Rico.
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Re: SC - Sloth [#permalink] New post 17 Apr 2009, 19:28
bandit wrote:
Minheequang wrote:
IMO E

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of --> this answer incorrectly means the sloth, not the fossil, was found in Puerto Rico in 1991
B. sloth, that they found in Puerto Rico in 1991, [color=#000000]has[/color] been dated at 34 million years old, thus making it the earliest mammal known on --> many problems: wrong verb tense, same error as (A) and thus is needless here
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of --> also the same errors as (A) & (B)
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on --> this answer wrongly mean the fossil, not the sloth, is 34 million years old. Besides, on is unidiomatic
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of --> correct meaning, precise clause, idiomatic phrase, best choice
Fossils ...was is not correct here.


Was is correct because it is the verb for subject sloth, not fossils. Check it again, you will see that which stands behind sloth, beginning a new clause "which was dated at 34 million years old". Hence, this clause will modify for sloth, not for any other noun

However, I re-check my answer and think that the correct ans is most likely (D), not (E) as in my first post. The reason is that the particple phrase standing between the 2 commas found in puerto Rico in 1991 is most likely modified for sloth, not for fossils, so it is incorrect
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Re: SC - Sloth [#permalink] New post 18 Apr 2009, 00:38
this qts i hv seen on set 14 qt with C and the same qts I hv seen in set 15 where OA given is D ..

this discrepany i hv notive in scoretop sets ...this force me think that OA given are not reliable ..

Anyway IMO D is correct ..
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Re: SC - Sloth [#permalink] New post 18 Apr 2009, 19:14
I initially thought it was D bit it is C.

Manhattan talks about "that" being used when one wants to narrow the identity of the modified noun - so in this case we are talking about the arm "THAT" was found. "WHICH" is usually used just as a middleman modifier. Pg 66 on Manhattan SC 2003.
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Re: SC - Sloth [#permalink] New post 20 Apr 2009, 10:24
Am actually quite surprised how the majority have selected C..To me D is pretty clear.

What is the source of this question please?
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Re: SC - Sloth [#permalink] New post 26 Oct 2009, 06:54
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tenaman10 wrote:
Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of


A and B - pronoun error
C according to Manhattan, "this" is always wrong in GMAT. "Fossils ... was" is obviously incorrect.
E "was...dated" should modify fossils not sloth - distort meaning

D for me
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Re: SC - Sloth [#permalink] New post 16 Jan 2010, 12:36
Quote:
Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of


I found this question on GMATPREP today.

Frankly speaking i found all choices wrong

Though I picked E, the OA is D

Can someone pls explain how a 'have been dated' in choice D can be correct in this context?
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Re: SC - Sloth [#permalink] New post 16 Jan 2010, 18:45
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This question can be found in the GMAT Review, 12th Edition. It is question number 78, and can be found on pages 672 and 724, the latter containing the OA. The correct answer is D.
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Re: SC - Sloth [#permalink] New post 19 Aug 2010, 20:21
OA is D...I am looking at Prep 2's answer. I chose A

from my analysis I would say it is because fossils are the subject not the sloth. Also fossils is plural so you cant use "it" ... if you use it then you would be saying that the arm of the sloth is the earliest known mammal right?
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Re: SC - Sloth [#permalink] New post 20 Aug 2010, 00:40
To me, D is clear. I am also astonished to see soo many Cs.
While in C, "sloth that was found " if we are using that clause to refer to fossils (which in this case we are actually !! ) was have to be were !!!
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Re: SC - Sloth [#permalink] New post 20 Aug 2010, 11:38
the below should be useful.

Quote:
if you eliminate the intervening modifier, you get "the sloth, which ... was dated at 34m years old".

this is wrong. it's not the sloth that has been dated at that age, it's the fossils.

so yes, this "which" modifier is incorrect.
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Re: SC - Sloth [#permalink] New post 20 Aug 2010, 12:12
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tenaman10 wrote:
Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of


Quickest approach:

The subject (fossils) is plural. Eliminate B (has been dated), C (was dated), and E (was dated) because the verb in each is singular.

In A, the pronoun it is ambiguous because it could refer to the arm, to a sloth, or to Puerto Rico.

The correct answer is D.

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Re: SC - Sloth   [#permalink] 20 Aug 2010, 12:12
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