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Unlike most suspension bridges, the main cables of the

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Unlike most suspension bridges, the main cables of the [#permalink] New post 17 Mar 2007, 05:33
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D
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Unlike most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires protection from corrosion.


Answer Choices :

(A) most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(B) most suspension bridges, the eighty-year-old Williamsburg Bridge's main cables are made of ungalvanized wire, which now requires

(C) the main cables of most suspension bridges those of the eighty-year-old Williamsburg Bridge now require protection from corrosion as they are made of ungalvanized wire

(D) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(E) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now require

Pls also give explanations, as I already have the answer :)
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 [#permalink] New post 17 Mar 2007, 06:10
E.

Since we are only talking about cables, we should be looking for Unlike most cables...

THis leads us to C...but this would be a very strange sentence by repeating "protection from corrosion" two times.

D looks good, but requires is incorrect, should be require.

Hence E
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 [#permalink] New post 17 Mar 2007, 07:36
I say D

you need the correct comparison

only D & E have this

it should be requires

galvanized wire REQUIRES

since the which clause modifies the galvanized wire it makes sense that require should refer back to the wire, not the cables so therefore singular
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Re: SC: Williamsburg Bridge [#permalink] New post 17 Mar 2007, 13:20
GMAThopeful wrote:
Unlike most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires protection from corrosion.


Answer Choices :

(A) most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(B) most suspension bridges, the eighty-year-old Williamsburg Bridge's main cables are made of ungalvanized wire, which now requires

(C) the main cables of most suspension bridges those of the eighty-year-old Williamsburg Bridge now require protection from corrosion as they are made of ungalvanized wire

(D) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(E) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now require

Pls also give explanations, as I already have the answer :)


only D and E uses correct comparision. Now between D and E i choose D because which is a relative pronoun which modifies unglavanizes wire, which is singular. So the verb should be requires. Hence my answer is D.
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 [#permalink] New post 17 Mar 2007, 15:27
I pick D for the singular use of require. Another tip: the word "which" almost always refers to the word right before. Hence, it refers to the wire, not cables.
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SC [#permalink] New post 18 Mar 2007, 04:47
Note the last fragment of the sentence that has not been underlined: "protection from corrosion". What requires protection from corrosion? The main cables, because they are not galvanized. The bridge per-se does not require any protection.
"main cables" is plural, so takes a plural verb "require"

Hence "E", not "D"
What say you all?
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Re: SC: Williamsburg Bridge [#permalink] New post 18 Mar 2007, 04:52
GMAThopeful wrote:
Unlike most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires protection from corrosion.


Answer Choices :

(A) most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(B) most suspension bridges, the eighty-year-old Williamsburg Bridge's main cables are made of ungalvanized wire, which now requires

(C) the main cables of most suspension bridges those of the eighty-year-old Williamsburg Bridge now require protection from corrosion as they are made of ungalvanized wire

(D) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(E) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now require

Pls also give explanations, as I already have the answer :)


I find it difficult to see what now requires protection from corrosion- logically, this would be the cables, not the ungalvanized wire. C is the only one that makes sense to me
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[#permalink] New post 18 Mar 2007, 05:02
Boys and girls - all those who think that D is the answer, go thorough your logic again - coz OA is NOT D :twisted:
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Re: SC: Williamsburg Bridge [#permalink] New post 18 Mar 2007, 05:05
kevincan wrote:
GMAThopeful wrote:
Unlike most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires protection from corrosion.


Answer Choices :

(A) most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(B) most suspension bridges, the eighty-year-old Williamsburg Bridge's main cables are made of ungalvanized wire, which now requires

(C) the main cables of most suspension bridges those of the eighty-year-old Williamsburg Bridge now require protection from corrosion as they are made of ungalvanized wire

(D) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now requires

(E) those of most suspension bridges, the main cables of the eighty-year-old Williamsburg Bridge are made of ungalvanized wire, which now require

Pls also give explanations, as I already have the answer :)


I find it difficult to see what now requires protection from corrosion- logically, this would be the cables, not the ungalvanized wire. C is the only one that makes sense to me


they in C has potentially more than 1 antecedent
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 [#permalink] New post 18 Mar 2007, 05:13
Agree with trivikram.
In C, "they" has been used ambiguously. It is not clear whether "they' refers to "most suspension bridges" or to "main cables"
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Re: SC [#permalink] New post 18 Mar 2007, 18:18
GMAThopeful wrote:
Note the last fragment of the sentence that has not been underlined: "protection from corrosion". What requires protection from corrosion? The main cables, because they are not galvanized. The bridge per-se does not require any protection.
"main cables" is plural, so takes a plural verb "require"

Hence "E", not "D"
What say you all?


I have no idea about this. Why not " the wire requires protection from corrosion" ?
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Re: SC [#permalink] New post 18 Mar 2007, 23:17
GMAThopeful wrote:
Note the last fragment of the sentence that has not been underlined: "protection from corrosion". What requires protection from corrosion? The main cables, because they are not galvanized. The bridge per-se does not require any protection.
"main cables" is plural, so takes a plural verb "require"

Hence "E", not "D"
What say you all?


The way which is used, it can not refer to main cables in GMATland. Logically main cables require protection but in that case "which" in (E) should be replaced by an "and". my 2 cents not even worth of a cup of coffee :)
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 [#permalink] New post 19 Mar 2007, 00:18
I agree with swagata... how can "which" be a modifier? it should be and in E.

Gmathopeful, kindly let us know the OA...

regards,

Amardeep
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OA [#permalink] New post 19 Mar 2007, 00:31
Here it is - the OA is "C" and the OE is -

The main subject is not suspension bridges but about their main cables; it is cables which require protection, hence the sentence has to be rewritten. Hence, (C).
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Re: OA [#permalink] New post 22 Mar 2007, 17:28
GMAThopeful wrote:
Here it is - the OA is "C" and the OE is -

The main subject is not suspension bridges but about their main cables; it is cables which require protection, hence the sentence has to be rewritten. Hence, (C).


Think you GMAThopeful for posting OE, But if you put (C) into sentence, it will be
"Unlike the main cables of most suspension bridges those of the eighty-year-old Williamsburg Bridge now require protection from corrosion as they are made of ungalvanized wire protection from corrosion. "

I think that a "," should be added before "those" and that "protection from corrosion" is rendundancy.

Anyway, I will go to visit friends this weekend and come back on Sunday. So, wish all of your guys have a good weekend. :flower
Re: OA   [#permalink] 22 Mar 2007, 17:28
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